Phone Arena reports that AT&T has begun supplying its retailers with LTE-compatible micro-SIM cards, requesting that existing micro-SIM stocks be scrapped in favor of the new ones supporting the latest networks offering faster data speeds. The obvious explanation for the shift is the launch of the Nokia Lumia 900 next month, but speculation naturally also turns to Apple's plans for its upcoming devices.

Earlier this month, we noted that developer builds of OS X 10.7.3 were showing evidence of AMD's forthcoming "Tahiti" graphics card family, the first to be built using 28-nanometer technology.