1. Support from Nokia. I would pay for functional OS upgrades after a year. And indeed, giving updates to WP and Symbian software, but not for us MeeGo-users is a kick in the nuts.
2. +1 for VPN
3. VPN
4. VPN. Really. There are free, but very unencrypted and therefor fully untrusted wifi hotspots all over. Without VPN I will not ever connect to those. And neither should you.
5. +1 for UPnP client. Phako is working on that though, but this should have been available at launch.
6. More powerful UPnP server. I think it is very well possible to stream the audio and display of the device directly to a tv. There will be some lag though, but it would compensate for the (shocking) lack of HDMI-out.
7. ODF editing capabilities. But I applaud the ODF viewer already present, even if slightly buggy.
8. Browser updates. More HTML5 conformance. (Much) more privacy options: disable third party cookies, disable referrer, disable javascript, ability to block privacy-disasters (Facebook, Google Analytics et al.) Yes, I'm aware that Opera supports all of these features, but to configure those settings using opera:config is not very userfriendly. Also, Opera's integration in the OS is limited.
9. Customizable search engines. I don't like google.
10. JavaME support. Official Java SE support would be nice. On a sidenote: JavaSE does work on the N9, and JavaME also. But both aren't really user friendly to set-up
11. Transparent device encryption. I'm carrying a good chunk of my e-mails and photos on this device... I believe most bits for that are already in place with the hardware-assisted AegisFS. But more control over it would be nice.
12. Videosupport for XMPP.
13. Bluetooth PAN "client" and "server". I find wifi-tethering cumbersome and insecure.
14. SyncML account support. SyncML works, but the GUI is missing.
15. Mountable WebDAV, CIFS.
16. Most importantly: While I'm not against Aegis or TPM, don't block me of using my device as I see fit. I should be able to run as (real) root and can install and do whatever I want on my own device. As it is, this is already blocking some other points in the list from being possible.

Finally, I don't particularly care for all those closed, proprietary stuff like Skype and Whatsapp. Also, Draw Something, Wordfeud are temporary gimmicks.

Yes, I'm very aware many of the items on this list can't be implemented because of Aegis / Nokia blocking it somehow. Sorry for venting my gripes, but I take every opportunity to show what we, the customers, are missing because of these blocks. (And why you shouldn't even consider a WP or iOS device, which are much, much more locked down)