Eloi,
I firmly believe that an investment in this company will be a winner for you and your son. It's one of those "right technology at the right time" scenarios. According to Vu1, their primary focus right now is reducing the size of the power module for the R30. I was told it's a very tough, complicated challenge, but they've been working on this long before the larger bulb was developed (for the 2nd of their 3 videos) and expect to have the job done soon. I was also told that, in the meantime, they're continuing to improve their technology: "Progress on the electronics is being made virtually every day."
Right now it's just a waiting game for investors, but they do have updates planned like the recent video displaying the different bulb types. They are 100% confident that this company will succeed and still hope to hit the market this summer.
I agree with you and Bull about the acquisition prospects for this company, maybe as soon as the end of this year. Either way, this stock is a money maker. Oh, and welcome to the board!