About the android wallet - aren't these smart phones even more suspect to being hacked / virus infested than desktop windows pc's? I guess you should move only as much as you think you'll need and transfer back as soon as you know you won't be needing it for a while.
The android app has safety notes that suggests you do not root your device and only install apps you fully trust. It is true malicious apps could potentially steal your wallet data. It also suggests to keep the risk low by only using small amounts for your daily use.
I'm the one working on the android wallet and I personally wouldn't trust it with a large amount of funds.. but I can be overly paranoid about things like that.
I've read that some people use a dedicated device for their android wallet and turn all the services off until there required.
Once I've completed the development (still hashing out the serialization) I'm going to look into encrypting the wallet file itself, or at least providing the option. It would require a password when you start the program to unencrypt the wallet file but would provide a better level of security against external threats.
Sorry for taking so long on the android app guys, re-writing the serialization has been an arduous process but I've made real headway finally.
For anyone interested in the details of where I'm at (getting technical for a moment). The app will currently serialize/deserialize the raw transactions properly but the wallet isn't able to accept the new serialization through the protobuf stream. Once I update the protobuf auto generated code to allow for the txComment field we should be in business.
I don't want to get anyones hope up at this point though as I've thought I've had it working a few times now just for a new problem to pop up.
Im working as diligently as possible to try to get it out to everyone and will have it ASAP!