If you have a gmail account, you get a google plus account with it, many of end of with several of each. For mail this is usually what you want but for plus with it’s circles you usually just want one account and to split post by circle. Fortunately there is a way to redirect one account to another.
This way anyone looking for you at the account you don’t really use or looking you up via an alternate email gets redirected to your active account.
I have just got the new gphone, the G1 which is a collaborative venture: google provide the OS, HTC make the hardware, T-Mobile provide the netwwork, and loads of software is written by many people - and made available via Google marketplace.
While a few things feel a little beta still; on the whole it all hangs together very well indeed.