I'm at my work now and here the browsing experience is good. No problems with whatever website. Of course infrastructure-wise there are lots of differences between work and home. At home i use WEP, here i don't, AP's are of different brands, back-end network infrastructure is different, etc. So i have some troubleshooting to do at home.
What p*sses me off is that this only started to happen after i flashed the new firmware. I re-flashed twice. First time with the firmware local on my harddrive and immediately restoring the backup i made. Then i installed all my apps, yes, a multi-hour operation, specially when the whole world is using the repos, and then i found out about the browsing problems. Actually, i should have suspected something while i was not able to access the repos, but i blamed it to traffic.
Then i re-flashed with the image downloading using the update app and started browsing right away, without restoring my backup. Same story.

Now i have to figure out what is wrong, change AP's, change encryption configs, etc, etc.

Does anybody know what has changed in the networking part of the new firmware so i know where to look?

Ton.