Where does all the hate for the clam-shell come from? I just love it, it protects the screen in your pocket (I don't think a PSP design would even fit in a pocket, especially not with a 5" screen...), allows for both a pretty big screen (AFAIR there's been a discussion about how big you could go with the current lid-size... Something about 4,8" to 5" although it would be horrendously more expensive) and a hardware keyboard (Which I think is far superior to any touchscreen keyboard I've ever used :/)
Yes, the hinge probably is a weak point but so far my Pandora's survived some drops from around 1 meter onto not exactly soft floor whereas my smartphone's screen broke on its first drop.
I don't find the touchscreen awkward to use, I've actually found a pretty comfortable style to hold the stylus in my hand while typing and switching to the touchscreen requires about 0,5sec.
Also, I don't actually care if the Pandora's ugly (which she isn't, in my opinion
It's a practical and ergonomic design and I really like matte black) or doesn't go with current trends (like screen-only piano-finish devices with glossy screens and glossy everything xP Man, I feel so old always complaining about new technology and trends)
HDMI would be nice though as would 6 buttons and L2/R2 (I think you could hack some together right now... Maybe on the bottom of the unit.)
I actually thought about adding an internal microSD reader, that shouldn't be too hard.