It looks like the final build number for Windows 8 could be 8888, according to a news source familiar with Microsoft and Windows 8. Build 8888 is a candidate for when Windows 8 launches later this year. This means that Microsoft are almost finished with Windows 8, and are ready to sign off soon.
8888.16384.win8_rtm.120724-1555 is what has appeared on the builds list, the build was compiled on July 24 2012 at 3:15PM. The company have been voting on builds to select for final RTM, and it appears 8888 is on the list. Windows 8 is expected to be signed off pretty soon now.
This is a rumour, final RTM builds could be anything from 8600, 8800 and more.Microsoft, Windows 8