hello guys. im thinking of buying an ipod touch 32gb. Ive looked in apple's website for technical specs, and under certain conditions they say it can play music for up to 36 hours. So, i wonder, how can this be the same for all the versions? Notice that exept the 8gb and the 16gb models, the 32gb model uses a flash disk drive. This should provide better speed and.... much more battery life. So any info on this?