I was under the assumption that the Calendar could sync with Google's? Although only for one account.

With regard to the software:

Password Safe is being worked on for Freemantle. I think it's in Extras-Testing?

Vagalume, a last.fm client for previous versions of Maemo, might be ported. Even if it isn't, I'd be very surprised if a last.fm application isn't made.

Spotify - http://www.youtube.com/watch?v=QOvldo3ZsnA So I wouldn't worry about that too much either.

There's a thread about battery life somewhere else, but the biggest thing I've heard is that the initial few charges give very little life time, but then the battery life improves greatly. Just remember not to do a 100% discharge.