Bitcoin Wallet has been deterministic for a long time. In fact, it was among the first to switch to HD.

The main reason the seed is not exposed as 12 words is because in many cases they are not enough to back up your whole wallet. A wallet can consist of more than one seed (if one was detected as unsecure for example), plus a number of random keys from the old days. Just writing down the current seed will make the user loose the older ones – but due to address reuse people still do receive coins on old seeds and keys.

And the other reason is no one has implemented it. Bitcoin Wallet is open source and free software. Anyone is welcome to add features themselves and offer it as a pull request.

This board is for Bitcoin Wallet, not bc.i. I suggest mailing their support.

The feature is now finished, merged and starts to roll out to 10% of users.

If you feel like skipping the queue you can download directly from here:

https://github.com/schildbach/bitcoin-wallet/releases/tag/v4.37

I just updated our branch so that it supports encrypted wallets (spending PIN).

We're already working on getting child-pays-for-parent into Bitcoin Wallet. The branch is here: https://github.com/schildbach/bitcoin-wallet/commits/fee-cpfp

It's still a bit rough and needs work. The biggest missing part is PIN entry, so you currently need to unset your PIN before raising the fee.

Any code review is appreciated.

Bitcoin Wallet, the popular wallet for Android and BlackBerry, is also used in Greece a lot. However, it's not completely localized. Would you like to help out? You will be translating from English to Greek, on Transifex:

https://www.transifex.com/projects/p/bitcoin-wallet/

If you create an account there, you can start right away. You are contributing to free software, GPLv3 licensed. Thanks!

For BIP44, multiple account support is mandatory. So strictly speaking, MultiBit HD doesn't support BIP44 (if the "Multiple Accounts" column is right).

Just some clarification: the derivation path used by bitcoinj (and thus Bitcoin Wallet for Android) is specified in BIP-32. So it would be appropriate to use the term "BIP-32" in that column.

We are in need of some testers for what will become Bitcoin Wallet version 4.22. Changes:

• Approx. 2x speedup when synching the blockchain. We have more speedup in store in a couple of weeks, but this is the first step.
• View all derived wallet addresses in list of "Your addresses". Keys from pre version 4 show up at the bottom of the list under "Old addresses".
• "From addresses" are not shown any more. Nowadays you can distinguish payments by their "to address".

Note this is alpha software. Use at your own risk.

Mainnet:
http://wallet.schildbach.de/download/bitcoin-wallet-4.21-bitcoinj0.12.3.apk

Testnet:
http://wallet.schildbach.de/download/bitcoin-wallet-4.21-bitcoinj0.12.3-test.apk

What email address did you use to send the report? I don't see your nick in our email box.

No one stops you from re-using addresses if you really want that. Just press "request coins" several times and hand these payment requests to different payers.

I don't understand your issue with emptying your wallet. If you're entering more than you have, it should ask you if you want to send the entire wallet. You can also use Options > Empty wallet to empty your wallet. No need to remember the amount from the main screen.

If you manage to fully sync the wallet you can of course send all your coins anywhere you like, including a paper wallet.

If the the wallet is too large for synching on your mobile device, you can recover your coins on a Desktop computer using these instructions:
https://raw.githubusercontent.com/schildbach/bitcoin-wallet/master/wallet/README.recover

We do have an alpha version that synchs about 2x as fast. There is more in store for the coming weeks, but this is a good start. If you're interested in testing the alpha, can you mail us?

What do you need that for? Ideally sync should be completely in the background, not noticable by the user.

First of all, I think extensions like this need to go to the BIP7x (payment protocol) family of BIPs. BIP21 (Bitcoin URIs) are already too big and the industry is migrating to BIP70.

The idea of specifying the amount in local currency is not new and has been discussed before. I think the conclusion was always as long as conversion rates cannot be determined in a decentralized & reliable way, how would you deal with payer and payee disagreeing about the rate? What about fraud, e.g. a MITM injecting their own desired rate? At the very least I'd say it's tricky.

The "one QR code per price category" usecase is based on trust anyway – why not just up the address and let the user enter the local amount?

This forum is about the Android app  Bitcoin Wallet. Look here for other wallets.

The protobuf-based backup format was introduced in v3.47 (May 2014).

Backup files are not interchangeable between apps.

Don't worry about manually managing addresses. Since version 4, each received payment automatically gets a fresh address, to protect your privacy.

Since version 4, each received payment automatically gets a fresh address, to protect your privacy. Don't worry, you can still receive coins on the old address(es).