The First Flash Replacement in Croatia
In March 2004 unpljugged studio found and applied their flash replacement concept at Blackduke v.10.
Update
Just a small clarification: sIFR is by Mike Davidson (the s is for scalable). It is based upon IFR, which stands for Inman Flash Replacement. IFR was first mentioned in February 2004. and introduced and explained in April 2004.
Update 2
Actually, it was Duke himself who made the .swf
file and also it was his idea, guys from UP just made it work.