I am currently travelling with my ipod touch and would like to update my software, however I do not have my computer with me. Is there any way I can update it with someone else's computer/itunes without deleting my music. It would also be preferable if i did not have to put my music on someones computer, as I have 20GB. Alternatively, is there any way to download skype onto ipod touch without updating itunes. Thanks in advance!