Thanks for the info. One thing I can't find is a way to create new receiving addresses. Is this implemented? It seems that it could be because the receiving address is labeled "main" which implies it might be possible to add others with different names but I can't find a button or menu entry for this function anywhere.
Yeah, there's no way to generate more addresses now... I know address reuse is not recommended, but it's by design to make things simpler to understand for people new to Bitcoin.
In the next month or two we're going to switch to a BIP32 HD wallet (once it's implemented in bitcoinj), so new addresses will be generated from the seed every time, and then we'll rethink how to handle this in the UI.