I've got a 1st gen, its jailbroken and I honestly could wait for the 4, but I don't see it having too many innovative upgrades from the 3, so I ordered a 3.
The crashing is absolutely terrible by the way as everyone has said. I actually have switched to a different browser to avoid it.
strangely enough, according to all the posts, my Safari crashes very rarely. I am writing on the iPad right now and normally have a handful of tabs open. Safari is a little sluggish, but its not too bad to be really annoying.