Just an fyi that I have seen a number of posts recommending that, in general, most people should consider getting Class 4 rather than Class 6 in terms of getting your bang for the buck. For instance, "http://www.nexusforum.net/nexus-one-help-forum/291-what-class-memory-card-get-nexus-one.html#post1003". You might do some similar Google searches to see what speed vs. cost works best for you.