Assuming the rx-51 actually is the leaked device here, I'm willing to bet it will do fine as its own product. The crux will be "is this the ONLY new Maemo device". If the rx-71 is a more "traditional" sized/featured NIT, then I bet all will be fine within the Maemo community.

If the rx-71 is the rumored Nokia netbook instead of being a NIT ... then I'll be happy (because it fits my device strategy), but I understand that the rest of you probably wont be :-}