in reply to Precompiled perl...

You are talking about "bytecode", and there exists ByteLoader/B::Bytecode, but it is HIGHLY EXPERIMENTAL. USE AT YOUR OWN RISK (note the caveats). Once it becomes stable perl might start caching bytecode, but chances are it will never happen with perl5 as we know it (but it probably will with perl5 under parrot, aka ponie). Why? I don't know, but my guess is as good as any. Take your pick

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"
I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).
** The third rule of perl club is a statement of fact: pod is sexy.