I've recently noticed that my iTunes library play counts are not increasing after syncing my iPhone and iPod. Anyone else experiencing this?

Yep, though I don't really care. The only time I found it useful was to show how useless the Shuffle's 'shuffle' feature actually was. It would show about a dozen or so tracks played over and over again, while other tracks were never played. I hated that POS. I'm glad the Shuffle feature on iPods now creates a playlist instead, MUCH more logical.