I've loved these little Tumbleweed houses for a long time... Beautiful, functional design. Every inch of space is thought out, and often serves two (or more) purposes.
On wheels, yes. Rv, not really. Usually, I think the Tiny Houses are built on an
axle to avoid housing codes (too small, no foundation, etc., etc.).
At 89 square feet, (not counting loft space, I believe), still about 50% larger than most of the
fiberglass trailers here...
Probably feel like mansions, comparatively....