a simple way to browse network neighbourhood from the iPhone, connect to any NetBIOS device out there, copy files and folder by drag'n'drop, simply locate any printer anywhere on the LAN and print to it!!!
Just like that.
Just like we've always done from our PC's....
How hard can it be???
If I had the skills to program an iPhone, I'd make the extention instead of wasting energy and time developing silly games and skins - and on top of it all, I'd be famous and loved by all.

I wonder why no one came to think of this!?!
I must be a genious! Just a pity I can't program...