Here is my problem with some things.
I don't want all these different apps which can easily be combined.
It gets worse when putting every app in different folders and try to name them.
Some apps just don't feel right in the folders you already made and one folder for just one app sucks.
Having separated apps and folders all over the UI doesn't really help either because it makes you constantly search for the apps you have. (I've got a lot of apps

)
Now don't get me wrong iOS is the best UI of all mobile devices out there but that doesn't mean things can't be done better.
Wishes for next iPad would be:
- New case design. (total new design and better grip)
- Build-in mini USB slot. (card reader is nice but USB would be way more useful)
- New battery. (higher specs probably drains the battery a bit more)
- Camera. (rear and front)
- 3G standard. (no more wifi only models)
- Increase in flash memory going from 16/32/64GB > 32/64/128GB
- Increase in RAM from 256MB to 512MB and maybe option for 1GB in the 64/128GB models.
- Faster processors as options (no need for it now with most apps but for professional audio/photo/video applications this would be extremely useful)
- Higher resolution display as options for the 64/128GB models.
On the iOS part:
- Better ways to organize and execute file sharing possibilities.
Where would I wanna use my iPad2 (HD) for in serious situations?
(I know these are possible with the first iPad but they don't work on a professional level in terms of reliability when your in a position were a problem can be fatal.)
- Agenda with way more options which can be synced to Mobile Me (including a big update for Mobile Me)
- New official Apple iChat app which would include Facetime. (keeping it clean and simple)
- Field monitor for camera's. (would be a HUGE deal in the movie business!)
- Controller for music/video/photo applications on the Mac where you can't have problems with latency issues. (new releases of Logic Studio and Final Cut Studio with iOS apps would show that Apple didn't forget those users and is still in the game for some serious ass whoopin)
- The perfect POS (Point of Sale) system for stores that doesn't keep you behind the desk all day long giving you more freedom to do what you good at doing, less administration to worry about and spend more quality time with your clients, customers and family.