Trojita is looking good Can't wait to try it!

But along with the speed optimizations you might want to have a look at the text strings also and remove excess clutter - such as "Number of messages: 1209" might be better with just "1209 messages". See my point? Also a tiny detail - no need to emphasize that line by making it oblique - it's already significantly smaller than the line above it making it clearly distinct.

Any chance of supporting custom icon sets?

And I know this was totally off topic for this thread but I couldn't help blurting out my opinion. Keep up the good work!! Maemo apps sure need all the possible help with UX they can get