By itself, The stock OS is not the concern, it is the market cap, which is too high IMHO. MC = price x OS count
The question is, can they realistically sell enough systems at a profit, frequently enough, sometime soon and generate a P/E that justifies the huge Market Cap.
I don't think it is possible, thus I expect to see a slow drain off of the stock price.
Only penny stocks with no profits I know of with MCs this high are biotechs. And they usually bleed off too when they reach this market cap area.