Looks like another round of roman candles are in order. After already setting off the celebratory fireworks for its previous user install milestone, CyanogenMod 7's done it again -- this time reaching past the half a million mark. The highly customizable Android homebrew is arguably the biggest aftermarket OS in the ROM-flashing campus, and it has the numbers to back it up. According to the site's stats, the official release of 7.0.3 saw the biggest spike in handset installations -- at 76,897 -- with unofficial nightly builds almost doubling that figure. Sure, it sometimes seems like the rooting community is a vast, silent majority, but it's actually a wafer-thin slice of Google's mobile pie. Still, congratulations are in order for this open-source hackdom triumph.