As MobileMe is shutting down by the end of this month, is there any way for me to upgrade my PowerPC Mac to iCloud ?
No – I’m sorry. (but you might have some alternatives)
You might be able to keep your …@me.com-eMail running on a G4 or G5 Mac that runs OSX 10.5 “Leopard” (or even OSX 10.4 “Tiger”) since not much seems to have changed on that front… but that will probably be all that’s left of MobileMe for you…
iCloud’s Calendar and Contacts are dependent on CalDAV and CardDAV syncing, and that wasn’t supported in MacOSX before OSX 10.6 “Snow Leopard” (in OSX 10.5 “Leopard” only CalDAV and CardDV importing is possible, syncing is based on MobileMe and LDAP). So you’re out of luck on those.
And Apple is closing down all iDisks at this moment, so you won’t have that anymore either…
Seems like there are only a few options left for G4 and G5 PowerPC Mac users to keep their info in sync on multiple computers :
1- upgrade to a new Mac (it’s the oct expensive solution, but also the most future-proof, as you will have full iCloud support in OSX 10.7 “Lion”, and you will get a free upgrade to OSX 10.8 “Mountain Lion”) – but that’s the option you might not want to think about, so…
2- start using another way of online calendar and contacts syncing, like Google/Gmail or Plaxo (and something like DropBox as an iDisk alternative) :
Note : if you have an Intel Mac and are still running OSX 10.5 “Leopard” (or even OSX 10.4 “Tiger”), you should upgrade to at least OSX 10.6 “Snow Leopard” (and if your Mac supports it to OSX 10.7 “Lion”) as soon as possible ! OSX 10.7 “Lion” supports iCloud completely, and we are working hard on figuring out how to get iCloud running on OSX 10.6 “Snow Leopard” also… look here for more info :