Meanwhile, Apple has failed to deliver on its promise of tight links between Ping and Facebook, ostensibly because the two sides couldn't before Ping's debut. During Jobs' Wednesday presentation, Facebook integration was touted as one of Ping's cool features, but users quickly learned they couldn't use Facebook to find friends on Ping. Discussions between the two sides are ongoing, but it's unclear when (or if) the Apple-Facebook standoff will end.

Bad Design: iTunes Sucks

Early glitches aside, many bloggers aren't thrilled with Ping's implementation, particularly the integration with iTunes.

PCWorld's Jared Newman writes: "At least on my PC, . I will avoid opening it when possible because of how long it takes to load and how chunky it feels to operate, and that's not going to change because of a social network. Also, people whose work computers don't have iTunes installed won't be able to use Ping for the great American pastime of slacking off at work."

Computerworld's Jonny Evans, who , also knocked its walled-off iTunes design: "That lack of focus on the world beyond iTunes could be Apple's Achilles Heel as it makes its best move yet into social networking...Without inclusion of content from the wider community, Ping will lack that visceral, addictive engagement 'stickiness' that characterizes other successful networks."