Three cheers for Chrome and the Chrome team. They have fully sandboxed Flash in Chrome for Windows, Linux, Mac, and Chrome OS, which should help make everyone's system safer and more stable. Flash has long been the cause of security flaws and browser crashes, so Google's sandboxing of Flash should stop at least the former of the two problems.
The latest Chrome release features a new version of flash, along with full Flash sandboxing. Google says that the new Flash sandboxing is as strong as Chrome's native sandbox, and "much more robust than anything else available." Between the two changes, Flash should remain safe for a few more weeks before someone finds a new compromise.
This will be especially good for Mac users as Flash has been a major problem for the platform as of late. They suffered the Flashback malware, and several other security breaches. Flash makes a great exploit tool because of its wide use and cross-platform support. It's doubtful anyone will stop trying to exploit it for a long time to come, so this step by Google is much appreciated.