Our mobile phones have become much more than just for making calls, I know mine also doubles as a media player, GPS device, and portable office among it's many other uses. With all of these uses we need more storage, my phone, an AT&T Tilt is capable of supporting up to a 32gb microSDHC Card, but...

Inexpensive compared to other 16gb cards; Relatively fast; especially with smaller files; Kingston quality

Large file write speeds are slow