Apart from the awkward UI this app currently has (due to improve I believe), it would be super-duper-ultra-cool to have Dropbox account integrated within standard File Manager and visible as additional drive. Or at least seamlessly symlinked to some directory within N900's filesystem.

Nonetheless, this is better than nothing and finally getting/uploading Dropbox files is possible directly from N900. MANY THANKS!

UPDATE:
Ok, I didn't think it through, I guess. Having direct integration with filesystem would mean all files stored in Dropbox account would need to be in constant sync, which isn't always ideal, ie. when I drop hunderds-of-megabytes-heavy files into my account from PC, I wouldn't like to have them synced to mobile over 3G, for example. So please scratch out my first paragraph here.