Whither Palm?

I use a Palm Treo 650 as my PDA phone, and it's been a decent, serviceable option for me. Of course, Palm essentially invented the PDA market way back when with the black on green screen, the funky handwriting, the stylus, and funny little clicking sound whenever you did anything. It's amazing how far those devices have come in such a short time, isn't it?

The last couple years have been hard for the Sunnyvale, CA company. Microsoft's mobile OS is far more functional and customizable. And there are many more devices to choose from once you move off the Palm OS. It's too bad, but it seems as though they've had their day in the sun, but they couldn't really sustain it over the long haul. They are closing their retail stores (who thought that was a good idea?), sending refunds to customers because of defective hardware, and they haven't been able to incorporate new features (GPS, WiFi, Apple-compatibility) into a compelling product.

So my Treo's days are numbered. But which model from here?