I hope this is still being read.
1) The ability to use a swype keyboard.
Or, failing that...enable a swyping option on the default keyboard for those of us who like it.
2) I don't even know if this one is possible, but if it is at all possible...it would be nice to be able to grab apps designed for the iphone and just resize them. For most apps it's not an issue...the ipad version is better and a resized phone version would look awful anyway. BUT there are a few exceptions. Some that simply haven't come out with a tablet version yet, and even a couple where the tablet version just wasn't ready when it was released. (example: thinkfree resized would be fine...nothing I use it for on the phone has graphics anyway..just text. There is no ipad version and the phone version wont load. Also Sportacular..the ipad version is beautiful...absolutely gorgeous...but with maybe 1/4 of the information and usefulness the phone version has).
3) a file folder. I know you don't like to give us access to the system without jailbreaking or rooting, but I don't really even need that. I just want somewhere to put stuff. Right now I'm using dropbox and I have zero faith in it's security. It's not a big deal, but sometimes you just need a place to put things. Independent of whatever apps you will be using to work on those files. Sometimes it just storage, sometimes I'm transporting files. And sometimes...just becuase it's nice to know where it will be if I ever decide in the future that I'd like to find it again.
4) THIS IS A BIG ONE. Sorry for putting it fourth..almost forgot...arrow keys on the keyboard. Sometimes the cursor isn't in the right spot and even with the magnifier it can be tedious trying to place it with my big fat fingers.