A product (usually computer-related) that is so stable and usable that running it in real time production environments is not only possible but recommended even though the product is marked beta
. Comes from Gmail
being in beta forever but still being awesome.
Man, Windows 7 is such a Google Beta! I run it on my main machine and haven't had any problems.
Universities have outsourced their email to Gmail because it is so awesome; it's a Google Beta!