why do you want to put apps on the SD card? have you looked at what apps2sd does? or what can happen if things go wrong (sd card gets pulled or sd card fails)??
apps2sd can allow you to install a TON of apps.. well over the normal 70 amp limit.. however, honestly, I have not found 70+ apps that need to be installed.. how many apps do you really need? you don't even know since you don't have the phone.
what can happen if all goes wrong... well.. you could end up with an expensive paper weight.. if you simply pull the sd card without powering down.. or power up with no sd card, normally a reboot (with the card in) fixes it.. but if the SD card fails (and they do fail).. your phone suddenly becomes useless.. how do you recover from a failed SD card? you could try reflashing a ROM.. that might help.. of course you would have lost all the apps on the SD card.. then again, if the card fails.. you could end up having to RUU the phone.. setting it back to out of the box stock. but until then, you'd have a useless phone..