Were the .tar files truncated then the extraction would have failed. There's trailing junk in the gzip, but the .tar files themselves are fine. I'm not sure what Samsung did to the file, but the file is broken as it exists on their server. It's less open, since any changes they've made are buried in the source. If this had been a repo we could have checked out from, then we wouldn't have hit the screwed up file issue -and- we'd have the revision history, hopefully back to the point that they checked it out from the primary repos.