As Wayne already said, there is more of a "desire" than "need" for up-to-date SW for Amiga.
The truth is somewhere in between.
We DO need a modern browser with flash etc,
We DONT need another stupidly huge MSN-like app (I still wonder how can anybody make this simple app so memory/cpu/hd consuming...).
We need OpenOffice, VirtualDub, many video/audio codecs (for compression/decompression, not for real time on 020...), we urgently need a new browser capable of flash, youtube etc. and definately we need a lightweight yet beautifull mp3 player. My God, AmiAMP makes me wanna bite the screen every time it runs on my 030. It is just too "HEAVY" for slower machines. It is heavy even on my 060!
In general, we have almost everything we need. Some of them are still usefull today, some not that much.
I, personally, would like to see a new Scala version...