I was sitting here thinking what the point of unlimited tabs is then realized I had about 20 tabs open from the past week. It was quite interesting to see, and the Safari UI makes it ridiculously easy to build up tabs without noticing (only on the iPhone, not on the Mac Safari UI imo). Combine vertical Facebook-like Timeline with Gmail-esque "never delete an email" mentality; now you never have to delete a tab again and can browse through them in a familiar chroniclogical order. I'm seriously going to try this out and see how it goes.