I think that this upgrade has gone a lot smoother than the last one. 
i just figured out on my mobile that if you see a little section that says user cp, it will take you to where your subscribed threads and pms are
As an iPhone4 user myself, I promise to hound our new coder guru until we can surf without the mobile skin.
Fix for Android users:
When viewing the forum, click the android menu button and select more. Scroll down and select settings. On the item " Mobile View" if the check box is marked, uncheck it. Just for ha has I also then selected "exit mobile skin". But I'm now viewing ecf on my droid just as it appears on the pc. Of course changing this setting will effect your viewing of other sites as well-but if that is an issue you can recheck the box when you're done with ecf.