This Windows Phone App magazine covers 140 apps for windows Phone 7 under the following categories
news & weather
travel
maps & search
games
productivity & tools
business
entertainment
music & video
lifestyle
reference & books
social networks
photography.
You can see an online version of the eBook here. The PDF version have splited one page to two, so the online version is better for reading if you have internet connection.
Download PDF version of Windows Phone App magazine
[Via winspark]