I have installed NetSurf 2.6 on my winUAE machine and I AM impressed :-) It is a very good product and hopefully will continue to be developed. Please make it support msExchange OWA.
Netsurf is rather limited still (for example it lacks javascript), and it remains to be seen if it will improve. You need to address the Netsurf authors really, not the amiga port authors.
Now I only need a good office solution - maybe openoffice. Is there something similar?
I'm afraid there isn't anything similar. Someone with little to no amiga coding experience is working on a port of OOo4Kids but I'm not too confident he'll pull that off.