... in no particular order ...

creative commons support

improve interface

test feeder2.py while GUI is on

Figure out why pyuic crashes when I add comments to .ui files

Better error handling in RSSGenerate

in config, check existence of output dir, offer better widgetry to prevent
bogus entries, allow creation of said dir

Make storing posts more efficient

Add an option to view deleted posts

In RSSGenerate, create a feed which is the union of all the subfeeds.
Alternately, create a tool which does this for any set of RSS feeds

Search posts

Make <link> links work.  Maybe throw them into the bottom of the post?  Also titles.

Add feed update status to feed

Doco!

"No HTML in RSS" option

clicking link opens, optionally, in real browser

Posting new news from whole cloth

"Import my LiveJournal friends list"

"Get LJ Title from LJ"

Fix post attribution... again