What tablet? Does it run Dos or just Windows 95? A bit more information would be good.

ANdroid 2.2. I managed to install an .apk file from an email as an attachment. 

I wonder, how can I compile my sketch to an .apk file, straight to my hard drive (instead of the emulator or my phone)? Where are the apps installed on the emulator? 

try adbWireless ... though it requires a rooted device, which you may not be able to without a usb in the first place ???

I guess not... in the meantime I still can compile sketches to my phone and email them. Bit tedious...

one way i think it can work is to setup a webserver on your development machine and compile your apk to a place on the webserver where the apk can be served up.  If  you setup the mime-type as an application on the webserver then all you'd have to do is visit the URL of the apk on the device and it would ask you to install it.  yay...magic! :-)

Now that would be awesome...