LSharp 1.2.1 has been released , see www.lsharp.org* . It includes various fixes and improvements, many as a direct result of Hans-Peter Wickern’s input – thanks!

LSharp on Mono is still not perfect, but many of the sample programs now run! I’d welcome more feedback or help from Mono programmers.
There’s a new IDE called Xacc that’s great for developing L Sharp programs. It even bundles the L Sharp runtime – defintely one to watch. See http://blogs.wdevs.com/leppie/ for more information. Thanks Leppie – Keep up the good work!
LSharp 1.2.1 changes include:
Fix to TopLoop so that it prints results correctly under Mono
Fixed problem with reader so that it sees lparen as a terminating character and thus correctly accepts expressions like (setq a(list 1 2))
Fixed Assoc so that it returns the pair not the cadr of the pair
Fixed Assoc so that the key can be a value type or reference
Primitive functions and special forms such as prl etc are no longer case sensitive
Added copy-list and append
Updates and corrections to documentation
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