5. AT&T 3G Network

AT&T
www.wireless.att.com

We hate to kick them when so many others have come before us. But spotty 3G coverage and overloaded networks have hobbled Apple's iPhone and App Store in some big cities and kept us from adding the iPhone 3GS to the list of this year's best gadgets. A delay in offering multimedia text messaging (while still charging for it) also merits a bucket of coal.