Originally Posted by Midiman
Buying a class 10 for this device would be a waste of money. It's faster than the phone is... so you will gain nothing from its potential speed.
Class 6 vs. Class 10 price difference is minimal. Besides, the microSDHC card can be used in a future device, which may make use of the Class 10 speed.
That said, if someone is on a tight budget and can only get either slower speed or more capacity, I'd vote for more capacity.