I just released an update for iBrowse which does two things.
Brings it up to date with iOS5
Brings the feature I have wanted for ages – you can now open links in a background tab
I use this when I’m browsing a news site. I go to news.bbc.co.uk, and I can now click and hold on a link, then select ‘open in background tab’. That story starts loading, and I pick a few other stories to load in the background.
Now I switch to coverflow view and swipe to one of the stories (which has probably already loaded by now).