Hi I have an old slow 8gb SDHC. I run a lot of apps off card. Phone has gotten slower as it fills up. I heard newer fast SDHC may speed up things up. I already used sdtools to optimize cache, etc. Call me whatever but I used to defrag my SD on my G2 and it would always speed things up... ZTE Windows 7 mount doesn't allow native filesystem operations like defrag or even error checking. Anyone?