Andy Ihnatko’s iPhone 4 Review

Andy Ihnatko’s detailed iPhone 4 review is just great. Here’s one tidbit I hadn’t noticed:

The iPhone 4 is 4.4 times faster than its predecessor when uploading. That’s a high enough increase that I insisted that the iPhone 4 submit to an immediate drug test.

It’s due to the iPhone 4’s improved implementation of HSDPA (which arrived with last year’s iPhone 3GS) and its brand-new support for HSUPA. Yes, take a guess at what the “D” (download speed) and the “U” (upload speed) stand for in those respective acronyms. The upshot: the iPhone 4 can make better use of all of the improvements that AT&T has been making to its network, and it shows immediately.

★ Thursday, 1 July 2010