--As many as possible?
--Even if your SD card is a Class 2?
Seems like it would be slower than running off the phone
Apps like keyboards, live wallpaper and widgets work best from the phone. And loading apps from the sd can be slower than if they were on the phone. All the apps I have on my home screens are saved on the phone. Any app thats not on my home screens get moved to the sd. Just the way I do it.
Does using a faster SD card make any difference in loading and usage speed on the Charge?
I know SDXC is supposed to be faster
Also, Class 6 and 10 are faster than 4.