1) Resizable windows which remember last known windows position.

2) Search by exact phrase.

3) Search with filters (ie. only show those +Available)

4) Selected unsuccessful partial files to be stored in designated temporary holding area, and client alert users when the users is online and available to continue resumed download/upload.

don't forget that there are still 56k users in existance.. and in case you may have forgotten, they generally can only transfer about 3 to 4 kilobytes a second..

1- chat would be nice...
2- file resumption from another server... altough I'm not sure that would be possible... and might invite more harm than good.
3- DO NOT add a freeloader filter. I don't like freeloaders either, but that also invites more freeloaders in a way... I could just as easily set my filter so high that noone could download from me as easily as I could share nothing.
Maybe this would work... give a filter option to block ip's sharing 0 files instead of a set number... that way everyone has to at least share one file.

maybe your are right about your thoughts about freeloaders. maybe we should forget this function. now i think this option could make the same damage like the new microsoft license model to the user

so forget the freeloader option !!

Guest book built-in.

Many times I had downloaded 2-3 times from the same source just to discover that the faults lies with the files not the transfer.

You need to inform the originator about the corrupted files.

And many files are not properly titled, causing us downloading for something otherwise.

how about a Newsletter Service for Gnotella?

Instead of just ".zip" search have it include rar, ace, and other compressed files.

the best would be to, that the user has the chance to configure his OWN file extension filter setting. That would be the best for all users !!!

if gnotella UPLOADS something to another user the Gnotella trayicon should show this with an extra colour !!

It may sound like a novel idea but I think some help/faq/guide function would be helpful