I’ve been using the iPhone OS 4.0 beta since last week, and so far I’m very impressed. There a few things that haven’t gotten a lot of attention elswhere and I I’ll point them out here.

- Cellular Data switch: This is great news for people outside of the US and UK who have limited data plans. Now if you have no data plan, are reaching your limit, or just don’t want to use any data at a given time you can turn it off independently of 3G/edge voice and SMS.
- Missing music controls: Double tapping on the home button to bring up Multitasking has come at the cost of the iPod controls (the little blue menu that would appear over whatever app you were working in). I suppose this doesn’t matter when you’re using Apple earphones, but I already miss that feature quite a bit and I hope they can re-implement it.
- Threaded email doesn’t work (yet): The universal inbox works perfectly, but the actual threading makes strange mistakes. Completely unrelated messages from different people are grouped together, not all conversations are threaded…its a mess. Hopefully Apple can get this figured out by the Summer release date, and I’ve just disabled the threading for now.








