-unified emulator frontend and in emulator menu options framework
-hot swapable nub slot accessories (trackball, touchpad, joystick, etc)
-multi touch resitive or capaitve hybrid display 1200x800
-notched hinge possitions
-backlit keyboard
-multi os stock (angstrom, android, chrome, ubuntu)
-L1,L2, R1, R2 shoulder buttons
-accelormeter
-haptic feedback
-comm port/3g card slot (minipcie)
-hdmi output 720/1080p
-better power management (instant on)
-dual core arm soc
-aluminum case
-external debug/terminal port
-micro/mini usb charging(it may already do this?)
-rounded more ergonomic case design(xbox 360/sony google tv remote)
-docking port/station/port replicator (desktop replacement)
-bluetooth slave (iCP w/ keyboard and extended 2nd display from host)
-exterior backlit lcd display (mp3 player,battery meter, time, etc)
-physical number buttons on top of case for voip phone /calclator (impracticle , just throwing it out there)
-ir port for remote control/connectivity
-camera
It was posts like this that made me think that when the Pandora 2 is being thought out we should have 2 cartridge slots (may be a bit bigger that a DS cartridge (ask the hardware guys))
One would be at the front and replace one of the sd slots (but would come with a sd card reader cartridge)
The one at the back would come empty.
Then, instead of stuffing tonnes of phone/gps/camera/radio/tv hardware in:
(expensive)(not everyone wants all that)(takes up lots of space)(complicated one-piece pcb to give production/hardware devs a headache)
things sticking out would only do so by under cm or so I think.
We could then produce all that as cartridges 2 months at a time and sell them seperately:
Navigation: contains gps and digital compass [flush]
Broadcast media: DAB/DMB/DAB+/FM/DVB chipset [tv out socket and antenna sticking out ]
Mobile interwebs: contains sim card slot [flush]
USB hub: [dwisott]
Hacker cartridge 1: takes the raw USB/I2C conections and provides connections too them
Hacker cartridge 2: provides nice protected, buffered, and easily controlled output pins. [sticks out]
2 way comms ports: IR, Xbee?
Camera cartridge: small protruding camera [put in front slot for user facing /etc]
Tactile gaming: gyro, accelerometer haptic feedback vibrator.
Battery hot-swap: small rechargeable battery. (put in when main one is empty, swap main battery, optionally charge back up form main battery or mains. (for those who don't want the above features they could get some extra battery life!)
when the built in stuff becomes obsolete a supplement cartridge could be made (e.g.for physically different memory cards/the latest wifi.
I think this would help keep the project up to date and appeal to a wider rage of users while keeping the cost down.