I have a MBP that is running snow leopard. Right now I sync everything together using mobileme, but that is going to disappear pretty soon. I want to migrate to iCloud but I need to make sure all my macs have Lion in order to preserve all the icloud functionality, right? The only problem is that I know ML is coming out "very soon", and I am unsure as to whether or not I should spend $30 to upgrade to Lion, only to have to spend another $30 to upgrade to ML in a month or whatever. Unfortunately I may have to bite the bullet and do it anyway, since I will be travelling soon and will be relying on my laptop (and iCloud remote connectivity features) during that time. When's the last day I can migrate my mobileme services to iCloud?