More stuff on LED while waiting for the Procyon 100:

R.I.P. for CFLs? LEDs to Light our Future | QUEST Community Science Blog - KQED

CREE has recently announced (Nov 18, 2008) they can achieve 170 Lumens per Watt (lpw).

I don't know what the lpw's are on the XLamps, but I suspect they are more than the 55w panels. Would be interesting to know. Of course red led's aren't rated the same as white light used for human illumination.

Al interesting and recent developments though.