Apple's MobileMe Lacks True Push Syncing - InformationWeek

According to many users, and as reported by numerous news outlets, Apple MobileMe's implied promise of instantaneous sync between between multiple devices (including, it had been implied, your desktop Mac) is not accurate. Since it appears that syncing from the desktop to anywhere else in "the cloud" can actually take as long as 15 minutes, many are questioning Apple's referring to this functionality as "Push" (as opposed to simply sped-up, automated "syncing"). Marin Perez of InformationWeek writes:

The gripe comes because data entered on their Macintosh or PC address books and calendars isn't immediately pushed to MobileMe's servers.

"Selecting Automatic in Mac OS X allows your computer to immediately sync and update when there are any changes on the MobileMe servers," read a support note on Apple's Web site. "Those changes come from your iPhone, iPod Touch, the MobileMe Web site, or another computer. Changes made on your computer will be synced to the MobileMe 'cloud' every 15 minutes."

You may have shared my slack-jawed gape and consequent fistbump when Phil Schiller's WWDC demo of MobileMe [free iTunes link] implied magically fast, truly instantaneous syncing. Because that's really hard to do well -- and implying MobileMe would enable such a thing suggested mighty technological leaps over the previous .Mac service, whose sync skills and reliability were famously uneven at best.