1. A one click 'back' button/gesture In Opera Mini on my E61i, I just pressed the left navigation key to go back. With the N900 browser I first have to swipe and then select a page to get to the previous one.
2. Instantaneous display of 'back' page. On N900 it seems the page has to be re-rendered. On OM it was immediate. 3. Speed! I liked the speed of OM. especially for 'text heavy' sites, most notably my Bloglines account. Even with faster processor, I feel the N900 is slower.