I found this article an interesting and very informative read on the state of the PPC vs CherryOS claims floating around...
after try numerous times on a very high end machine (we're talking 2GB RAM P4 3.6ghz with 400GB RAID 0 SATA drive machine running XP Pro+SP2 based on the ASUS P5AD2 Premium mobo which is a high-end system all of which was done on a clean install of XPSP2 with the latest ATI Drivers - catalyst 5.3) I've given up considering CherryOS to be a contender to PPC. If anything, it feels laggier than PPC which gives me the impression that they may have “stolen” an older release of PPC and hurriedly changed over to the latest release back late last year when PPC 0.3 was released...
Hopefully no-one actually made any “pre-orders“ and if they did, they should probably ask for a refund;-)
Final Verdict: Go with PPC, its free and continiously developing.