I really doubt they'll use all their cash to do the entire buyback right away. The buyback period runs for a year. They may, or may not, buy a few just to send a message and then wait unitil revenue starts. Or, if the share price jumps due to either buyback or revenue ramp they may forego the buyback altogether. I'm informed but can't read minds. I think it was a brilliant move given what's expected later this year.