Im thinking of getting rid of my unlimited plan and getting the 5gb w/ tethering ( only $15 difference with corp discount) to tether my ipad, but i dont know if the performance is hindered in any way. Any of you with any experience care to comment? i know the iphones battery wouldnt last as long, but how effected is it? is the ipad's battery effected as well? what about speeds? i dont want to get rid of my unlimited then come to find out it doesnt work all that well. thanks for any help.