from dailytech http://www.dailytech.com/Apple+Reveals+It+Intentionally+Crippled+Bluetooth+in+iPod+touch+2G/article14611.htm
" Apple insisted at the time that Bluetooth was not on the iPod touch and that Nike+ didn't use Bluetooth.
Teardowns late last year, though, told a different story. The teardown revealed a Broadcom Bluetooth chipset with support for 2.1+EDR. The chipset, not listed on Apple's spec sheet, was apparently being used to implement Nike+. Some argued that there must be some hardware difference; Apple wouldn't just lock out working functionality.
Well, they were wrong -- during a Q&A session at the iPhone/iPod touch OS v3.0 press event this week, Apple let slip that Bluetooth is indeed on the iPod touch and that it intentionally crippled it.
Some are accusing Apple of intentionally crippling this key piece of iPod touch hardware as a ploy to sell its new OS. Apple is charging iPod touch customers $9.99 to upgrade and receive the complementary Bluetooth unlock.