I think that you're making a meaningless distinction. Plenty of companies have shown "wireless displays" over the years (long before Mira, btw) and they've all been in effect, stripped down tablet computers connected to the base unit via wireless link. So if everyone making and selling the technology calls it a wireless display, I think it's OK for posters here to do so as well.

I remember seeing Adobe demonstrate this (based on Display Postscript, and with a hardware company, I think National Semiconductor) three years ago ago at Seybold. It was a great tech demonstration (you could zoom into the display with no pixelation, for example), but as Mira is proving, not such a great hardware product idea -- you can remote control a machine with any wireless computer and VNC and achieve the same effect, without requiring any new hardware, between virtually any two computers (i.e. your wireless Palm, your laptop, Sun or Linux server, Mac, etc.) not just between custom hardware and an XP server.