Just a reminder that MobileMe comes to an end on June 30. If you rely on it for e-mail or to sync your contacts or calendars between devices, you must switch to iCloud before then. And before you switch to iCloud, you must be running OS X 10.7.x (Lion) on your Macs and the latest iOS on your iPhones and iPads.

If you are using OS X 10.6.8 (Snow Leopard), you can purchase Lion on-line by going up to the Apple menu and choosing “App Store”. Or click here. If you are using an older version of the OS, you will have to upgrade to Snow Leopard first, or buy the Lion thumb-drive installer from Apple.

If you don’t rely on MobileMe for over-the-air synchronization of that data, this really doesn’t concern you. You can make the switch to iCloud, then manually update your e-mail settings if desired.

Note that some services will be lost in the transition from MobileMe to iCloud. Among those, iDisk will go away and there will be no more web hosting. If you need these, you will have to find other services to fill the gap.

For iDisk specifically, I recommend DropBox. For web hosting, I like GoDaddy, but there are a variety to choose from.

I will be on vacation starting Saturday, May 12 and returning on Tuesday, May 29.

I’ll be traveling to Gotham City where I plan to fight crime at night while wearing a latex mask and inappropriate tights. As I am not particularly fond of heights and bruise easily, my contribution will probably be limited to driving around and yelling at kids to get off the lawn while trying to keep the cape I’m sitting on from strangling me, but at least I’ll be “doing something”. Or I’ll just stay in the cave and watch old movies while being served tea by a demented butler, I haven’t decided.

During my absence, Ed Covelli will be handling all emergencies and performing minor miracles. As he is particularly gifted, you can reach him by thinking really hard about gorgonzola cheese, or, if ethereal communication is outside your skill set, can e-mail or call him at 212/201-1465.