Yes. Basically any motherboard Supermicro release which has F in the model means, that there is IPMI which allows remote management. X10, X11 and X12 motherboar

Yes. Basically any motherboard Supermicro release which has F in the model means, that there is IPMI which allows remote management. X10, X11 and X12 motherboards have html5 viewer, which doesn't require java. I just ordered X11SCL-IF for my NAS and it is mini-itx. There are couple from Asorck rack available as well, and also mini-itx and with ipmi.