I think the Nokia Lumia 800 looks good, though they are taking a serious risk with the price.. £450? They are too close to iPhone 4S territory and you can get a Samsung Galaxy S2 for £399 off Amazon.
Nokia need to consider taking to price down to £350 for some serious market penetration imho. Maybe they'll start cutting the price after Xmas.
Still, its a start of a come back for Nokia and Windows Phone is definitely a "dark horse" I think.. they just need to get Flash/Silverlight sorted and getting the app library growing and I'll be considering getting a Windows Phone if not specifically the Lumia 800.