A possible problem with this is the
license:
- for use only by skilled professionals (ie not home users, I suspect for legal liability reasons), though they evidently don't bother trying to enforce this given the number of obviously amateur users in ST's own forums (when
this issue was specifically raised there, nobody replied).
- not for use in production systems (would this mean no selling anything one prints?)
- is combining such a restrictive-licensed part with GPLd parts (the rest of RepRap) legal at all?
Also, this board is programmed over its USB port using what appears to be
a Windows-only driver. (I know there are open source
compilers for ARM, but that doesn't help if one can't get the resulting binary onto the chip, and I don't know if something as low-level as custom USB will work in Wine.)
An alternative nearly-as-cheap ARM board is
the LPC P1343, but this is a lower spec (still several times faster than an AVR, but less memory).