Panasonic Instant Rebates good until December 1, 2012 (20mm f1.7 joins the party)
The Panasonic Instant Rebates are good until December 1st, 2012 and they feature four cameras (GH2, GF5, G5, GX1) and six lenses, including *shock* the 20mm f1.7 pancake with a $75 off combined purchase discount. These are good until December 1st 2012 (unless something changes).
The 20mm f1.7 is not shown in the main thumbnail list above, but if you go the individual camera rebate pages (eg GX1 or GH2 or GF5 or G5), you will see it right there. Or simply add to cart and proceed to the Checkout page and the discount will be shown at the top right corner.