Wow. Part of me wants this to suck, just so there are only iPhone and Android to worry about ever developing for, but this actually looks good enough to consider. I looked at WP through BizSpark a little, and it looks easier to develop for than iOS or Android, at least for corporate apps. It's possible RIM will lose out in the "corporate owned/managed" market to WP, especially if they can build in equivalent or bette…
E.g. if the phone costs £500 out of contract ("pay as you go"), it will probably be free on a 18-month contract that costs £40/month. If you chose a £20/month contract then you'd have to pay about £200 up front.