There's quite a collection of good and colorful blogs that track iPhones, Android devices, BlackBerries and other smartphones and no shortage of overlapping coverage among them (How many different "scoops" on the Android-powered Motorola Devour phone did I come across today?). Some are written by professional reporters, others by unapologetic geeks and others by thinly-veiled marketers. Here's a spin through 50 of these mobile phone blogs.

Reference list.