that's cool, but, still too hard for normal people. Hope Tango would support Ringtons directly from Music Hub + Simple Editing tools. Also I heard a rumor saying MS are going to depreciate Zune, eeekkkk.
I am using WebMatrix right now and I like it a lot (I use VS interchangeably). Please make home page same 4 buttons like v1 please. The submenu is very irritating. You would know it when you frequently open My Sites to access projects.
I actually run into some issues with Umbraco. So, I ended up developing my site from scratch. Not a bad thing since I want to learn the lower level part than using Umbraco. Will try those blog engine later again. They are kinda complex.
remember to cover Last.FM because it is updated with Mango, which makes the app 10x better. also What's App, a free messenger using cellphone numbers instead of creating a confusing account, which is better to setup messenger without re-discovering/re-invite my friends from my phone book, Mango supported too.
Not too free with Live Tile please. As an user, I like certain things in fixed places, so I don't have to hunt down the clues. You know, like, if file name is not always below the icon in Windows, it is quite hard to use.