Anyone who has a cydia blockchain app, DO NOT install this app, before you uninstall cydia's app, it will frack up the installation.
P.S. its not a wallet, just a blockchain viewer. I'm still ignoring all apple products, and selling anything I already have.
I believe if you connect from a unique ip, it allows you to sync with a blockchain.info account enabling the wallet features. Otherwise it'll just load up as a blockchain viewer.
(edited my OP to state that a jailbreak is not required anymore as it is now on the official app store)