If you have a vast universe to populate quickly and prettily....
or
You have a myriad of worlds in need of textures
or
(like me) you have the artistic skills of a blind whelk
Fractal Terrains Pro has been released. Not only does it produce world maps that are less 'fractal' than before, it has a number of other features:
1/ The gaia map - useful for quick and dirty production of earthlike textures that actually look rather earthlike
2/ River functions - allows generation of rivers (duh), which actually follow the landforms
3/ Lake and Basin fill - Finds the enclosed low points on a map, and fills 'em (duh again)
It receives my heartiest recommendation.
here's a sample:

Yes, I know it doesn't have fold mountains and continental drift effects, but its very pretty

(and I don't get a kickback from Profantasy, so there!

Cheers,
Cormoran