iPhone sync's Rating, but not Play Count
Dual 2 GHz PowerPC G5, 4 GB DDR SDRAM, Mac OS X (10.4.10), iPhone 8GB (old version) with OS 2.0
Dual 2 GHz PowerPC G5, 4 GB DDR SDRAM, Mac OS X (10.4.10), iPhone 8GB (old version) with OS 2.0
{quote:title=Apple kb Article: HT1386}{quote}
Email account settings (on iPhone only), music, movies, TV shows, podcasts, and photos are synced one-way, from your computer to iPhone (though you can import photos taken with iPhone to your computer).
iPhone sync's Rating, but not Play Count