1. Yes 2. Scheme is a better-established standard. Nice macro system. 3. Easy Java integration and totally lispy...not 100% Schemey because you can't do contin

1. Yes 2. Scheme is a better-established standard. Nice macro system. 3. Easy Java integration and totally lispy...not 100% Schemey because you can't do continuation capture. 4. It's way faster than PHP4. I haven't benchmarked it in years, because performance hasn't been an issue.