Android's Unity in Diversity

By choosing the relatively liberal Apache licence for its Android platform, Google runs the risk of fragmentation - something that the stricter GNU GPL tends to avoid. The company is evidently conscious of this:

a spokesperson for Google told ZDNet.co.uk on Monday that the OHA had foreseen these pitfalls. "All of the partners have signed a non-fragmentation agreement saying they won't modify [the code] in non-compatible ways," said the spokesperson. "That is not to say that a company that is not part of the OHA could not do so."

That's all fine and dandy, but it will interesting to see how it pans out in practice.