wouldn't that be great! i love the arrow keys, but a dpad snap on accessory would be awesome. any one care to make it? im guessing it wouldn't be hard since the n900 is open source. im also pretty sure that building a usb dpad wouldn't be to hard, with some basic electronics knowledge. it'd buy it if any one makes a working prototype.

here is a hardware switch i came across with a quick search.
http://www.mouser.com/ProductDetail/...Me5iLbu%2f0%3d

where would you like it attached?

like this



does it make sense?

Switch is the trivial part.
You also need a microcontroller which implements the USB HID stack, and talks to the USB bus and the n900.
http://www.obdev.at/products/vusb/hidkeys.html
for example
Then you need ESD protection, so it's not killed the first time it's plugged in in a dry environment, mechanical design that will take being unplugged and plugged in often, and probably also a electrical switch and USB socket so that you can charge or use USB normally without unplugging the device.

Impossible - certainly not.

Easy - not really.

Oh - and you also need drivers on the n900 side - most software won't expect a joystick for example.

Also - USB host isn't working yet - which is another required\ part of this.

thanks for killing my dream!

Well, you can still use the PS3 controller.

Something like game gripper would be nice:

And if you look here you'll notice it's on its way http://www.game-gripper.eu/phones.aspx