[plt-scheme] Requesting PLT Scheme JIT Information

Is there any information - design, strengths/weaknesses,
benchmarks, situations under which it's invoked, integration
with debugging facilities, (basically low level mechanics),
etc. - on the PLT JIT ?

Does the JIT produce better code from the type-scheme dialect,
given the available type information, hence representation
information and safety guarantees on funcalls/primop calls? If
not is any work underway to make this happen?

Also, is there any work underway or planned for a PLT Scheme
static compiler of standalone executables ala Larceny and the
like - just curious, well ok, also full of desire :-)


Thanks much!

Scott