It's a short list of companies that sell portable monitors/EVFs with HD-SDI inputs (for BMCC & BMPC-4K) or HDMI (for BMPCC) and scopes. A few minutes of web searching should answer questions such weight, cost, etc.
As for running UltraScope on anything other than some (but not all) Thunderbolt-equipped Apple computers, I could be wrong, but I don't think that's available yet.