Maybe providing a brief description of how users can backup their mobile wallets? Doesn't really need to be secure, I think most are more worried about bugs wiping them atm than having their mobile stolen.

edit: Btw, after brief testing (rcv, no send yet) I must say I really really like this client.

edit2: As I mentioned in an android-client donation thread on the main discussion board a few days ago I'd like to see some donation sharing between the different client implementers and BitCoinJ though. It'd be great to hear Mike's views on this as well.