[whpalmer4]

Buy a Mac and a copy of OmniFocus. If you absolutely must run some of that other stuff, avail yourself of one of the virtualization packages. You'll be a devoted Mac convert long before Omni builds a Windows application for you, I'll bet :-)

If you are just concerned about backup of your data, you could get yourself a WebDAV server account somewhere and sync your iPhone to it. Perhaps you can even run your own on your PC. My impression is that BingoDisk works satisfactorily for this purpose and isn't too expensive, but check the forums to be sure.