I agree with almost everything you've laid out here. I was waiting to have the use case for this thing laid out for me and I'm still not seeing it-- the oversights you mention make it impractical as a toy.I've been screwed too many times on 1st gen Apple products. I've basically paid to "beta test" the newest Apple device only to find the 2nd gen fixes the majority of the problems for far less money.
That being said, I love this idea but....
...i'll wait for:
1) Flash support within the browser (yes, flash sucks, but it's necessary today)
2) Real apps - not iPhone apps that have been up-rez'd. Wait 6 months - there will be plenty of iPad-tuned applications.
3) A front facing video cam/camera - come on... this is an obvious feature for the iPad - video conferencing (iChat), facial recognition, etc. I can't believe they left this out.
4) SD card slot. Apple has them on the iMacs. Give us one way to get things on/off and, give us a way to increase storage as it gets cheaper - SD is obvious. At the rate SSD prices are going down, don't lock us in to the tiny storage that is affordable today (64GB is puny for a media device). An SD slot could be used to expand storage as it becomes cheaper. Btw, the camera adapters are a JOKE.
5) Wireless synch. Let me synch over my wireless network. Better yet, let me synch over the internet. Really? A 32 pin iPod/iPhone tether? That's awful. The idea is that the iPad is wireless... give me a magsafe charger and that's it. See "future possibilities" below - get rid of the wires.
6) GPS. How is this missing? Like the front facing camera and an SD slot - I suspect cost/price impact. So many apps use location services... this cripples the device.
7) Lose the dock/keyboard accessory - the iPad supports bluetooth. Apple sells bluetooth keyboards. The camera accessory and the dock accessory are both so un-Apple-like - so is the cover - since when does Apple make accessories? I remember Palm Pilots having a similar keyboard dock - it was just lame. It feels like Apple is hedging that the on-screen keyboard wont work... let people buy a laptop if they want a real keyboard. Make a good enough synch system and nobody will need a keyboard.
Future possibilities:
1) Wireless displays - Put the iPad down near a larger display/computer monitor. Watch movies, use it as a desktop computer... Use a bluetooth keyboard with it at the same time...use the iPad as a giant trackpad/pointing device.
2) Induction charging - no wires... Palm Pre does it. So does my electric toothbrush. Wireless guys... come on, keep up Apple.
This thing has serious potential. I'll buy it when the potential is realized. I'm done beta testing for Apple.
Where I disagree-- I don't give a hoot about Flash. It's a scourge anyway, I'm happy to be without it.
What's the fascination with inductive charging? It's not wireless-- it's just a different way of attaching the wires. You still need a dock, and you still need to plug in the dock. Your toothbrush is inductively charged because that makes it cheaper and easier to seal. The Pre is inductively charged because, well, they needed a hook-- the Pre doesn't even get rid of the standard charger, they make you put a backplate on the thing.
And then I need to pack the silly hotplate every time I travel with the charger? Simple cables (and I agree with doing away with the dock connector and going straight mag-safe) make portable chargers much more portable.