It is a beta in every sense of the word
It has bugs, some of which are security related. Some of which seem to be related to internationalised versions of Windows (I've installed it twice now, and it works fine (XPSP2 in both cases) but YMMV, because it's a beta) and some of which seem to be related to proxies.
One of the problems with the term "beta" is that Google have devalued it by issuing completed software and leaving "beta" on it for months and years.
Beta means probably still broken.
That said, it's fucking fast. If it works for you, it's going to be slick as snot.
On OS X, though, it's a different story. Rock solid.
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Use P2P for legitimate purposes!
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