sandisk ultra? class 6

http://www.amazon.com/Sandisk-Mobile-microSDHC-SDSDQY-4096-Packaging/dp/B001QLEW5Q/ref=sr_1_2?s=electronics&ie=UTF8&qid=1298785046&sr=1-2looking to update my microsdhc; saw this-im pretty sure it should be compatible, but the 'mobile ultra' thing is bothering me.Will this work with an ez flash vi?

honestly I don't think it makes any difference. its probably just advertising.