If you're on a budget, you could get a lenovo X200 Tablet, fit a new battery and 8GB of RAM. You get a nice touchscreen which you can orient as you please and 2 minipcie expansion slots.
That is, if you don't require modern OpenGL/gpgpu features, nor plan on doing massively parallel jobs on it (It sports a Core(TM)2 Duo CPU L9400 @ 1.86GHz)
Hypothetically, you _could_ solder a faster processor (not realistically for most of us tho).
Why the X200 and not a more recent one? They changed the keyboard / buttons afterwards, for the worst :(
NB: you might want to patch the bios to remove the mpcie whitelist ibm/lenovo put in. Misewell flash coreboot (requires in-circuit programming, due to flash block write protection)
The X201 Tablet has the same chassis but Nelham architecture Arrendale CPU's rather than the Core2 of the x200's. But the x200's are still good machines at a very steep discount.
That is, if you don't require modern OpenGL/gpgpu features, nor plan on doing massively parallel jobs on it (It sports a Core(TM)2 Duo CPU L9400 @ 1.86GHz)
Hypothetically, you _could_ solder a faster processor (not realistically for most of us tho).
Why the X200 and not a more recent one? They changed the keyboard / buttons afterwards, for the worst :(
NB: you might want to patch the bios to remove the mpcie whitelist ibm/lenovo put in. Misewell flash coreboot (requires in-circuit programming, due to flash block write protection)