I had the rare opportunity to run Spb Benchmark on a single iPAQ 3650 running three generations of Microsoft’s Mobile operating systems (the Pocket PC 2003 image for the iPAQ 3650 came from Microsoft - it a special testing-only build that won’t be released to the public). This gave me the metrics I needed to make this definitely statement: Windows Mobile 2003, the first Pocket PC operating system built atop Windows CE .NET 4.2, is the fastest all-around operating system we’ve seen so far on these little devices we enjoy using so much. I present to you a series of benchmarks that show you exactly how much faster it really is! The Pocket PC 2002 and 2003 were performed on the same device, while the Pocket PC 2000 tests were performed on a different device, but of the same model.