I didn't know this, not positive if it is USA only either, so figured I better mention it just in case others haven't seen it or can comment on world-wide rebates....
Instant Savings on Select Zuiko Digital Lenses and Flashes
Get up to $100 off your next purchase of select Olympus Zuiko Digital Lenses and Flashes. Offer valid on purchases made May 1, 2008 through July 31, 2008 at participating Olympus authorized retailers only.
ED 7-14mm F4.0 $100.00
14-54mm F2.8/3.5 $50.00
ED 14-35mm F2.0 SWD $100.00
ED 50mm F2.0 Macro $35.00
ED 35-100mm F2.0 $100.00
ED 50-200mm F2.8/3.5 SWD $50.00
ED 150mm F2.0 $100.00
EC 14 1.4x teleconverter $25.00
EC 20 2.0x teleconverter $35.00
FL-36R Flash $25.00
FL-50R Flash $50.00
A rather huge (6mb) PDF of this Instant Rebate ad is here:
http://www.olympusamerica.com/files/..._Rebate_08.pdf