Here are my greetings to the Nokia designers, I hope you are reading!

I have used the 770 and the N800 in the past, and now the N810 for about a month. The one feature I have always missed in these devices is phone functionality. I would gladly throw my phone out of the window and carry just one device in my pocket. And I would gladly pay double the price if that is needed!

Anyway, here's my complete list of what I would like to see in the N900 and the OS 2009:

Connectivity:

• GSM call and SMS functionality
• GPRS/EDGE/HSxPA data
• MicroUSB charging in addition to the conventional one
• Replace MiniSD with 2xMicroSD slots
• GSM/CDMA/WIMAX functionality as MicroSD cards (SIM slot could be integrated in the device). This would make it possible for people to choose which connectivity they really want to have.
• Programmable RFID device, and RFID reader

Hardware usability stuff:

• One extra row of keys for number keys (an extra 6 mm of space is needed for this - it may be possible to slide the keyboard out that much more)
• Add Esc, Tab and | (pipe symbol) keys
• Add a couple of user programmable hardware shortcut keys
• The slide-out keyboard of the N810 is very, very good in my opinion. Please don't remove it in the next version, or replace with a poorer option. Better tactile feedback is always good, but the keyboard usability is extremely good as it is already, not including the missing number keys.
• Accelerometer for detecting motion and orientation
• 256 MB RAM (I'm still running out of it sometimes)
• Vibration for alarms and touch screen feedback
• A place for wrist or neck strap
• If possible after everything else, shave a couple of millimetres off in every dimension (But only if - the current size of the N810 is nearly perfect. Do not make it bigger. The N800 is a little bit too big in my opinion.

Operating system:

• Cryptographic services easy to use by applications (eg. for passwords and personal information)
• Unlimited swap size
• Better multitasking (an application must not be able to hang the whole system for several seconds)
• Bash and Coreutils instead of Busybox
• Make the system more "secure by default". Eg. the root password should be scrambled at initial startup.
• Make it possible to encrypt the user's whole home directory

User interface:

• Wide, thumb-operated scrollbars in every application. This could be an option in the control panel. Another possibility is a little bit less recessed screen (and both would be great!)
• The touch detection should be made more reliable (get rid of the falsely detected double taps and undetected taps)
• Add gesture support - instead of keeping the stylus pressed against the touchscreen, the context menu could open by drawing a small circle around the target item. Much quicker and easier.
• Portrait mode with automatic orientation detection using the accelerometer

Applications:

• Add Calendar, Todo and Notes application with standard open synchronization API
• Integrate Gnumeric (already works in almost a usable way)
• Browser tabs
• Firefox-style extensions in the browser (Adblock is what I particularly want - it could easily be used to block unwanted big flash animations which bring the device to near halt)
• Cryptographic integration in the browser - encrypt the saved passwords and form information
• More shortcut keys in every app
• A better e-mail app, regarding IMAP especially
• More supported protocols in the file manager: SSH, CIFS, FTP, WebDAV
• Almost forgot: OGG Vorbis sound support by default!