Why Does Windows Mobile Suck?

I have this Sprint Touch mobile phone that has to be the worst phone ever. It does nothing well - not even making phone calls. You would think that a phone would at least do this well, but the Sprint Touch doesn't. It takes the basic function of making calls and managing voicemail and makes it frustratingly difficult to perform. On top of that, it does a whole bunch of other stuff poorly. I think a lot of this is driven by the OS - Windows Mobile. In addition to the inability to perform the most basic functions of a phone, Windows has brought things to my phone that I never dreamed possible, such as programs randomly freezing up, a touch pad that doesn't really work, a really crappy web browser, and long boot-up times. No wonder the iPhone continues to gain significant ground in this market. It actually works!