Just upgraded to 0.8 (OS X 10.7.4) and ran my app. Got this error:
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dyld: lazy symbol binding failed: Symbol not found: __ZN2v82V837AdjustAmountOfExternalAllocatedMemoryEi
Referenced from: /Users/donovan/github/timecop/node_modules/libxmljs/build/Release/libxmljs.node
Expected in: flat namespace
dyld: Symbol not found: __ZN2v82V837AdjustAmountOfExternalAllocatedMemoryEi
Referenced from: /Users/donovan/github/timecop/node_modules/libxmljs/build/Release/libxmljs.node
Expected in: flat namespace
Trace/BPT trap: 5
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Just beginning to dig into this, but thought it would be smart to see if anybody else has used libxmljs with node 0.7.x/0.8 on a Mac.