I do mind people using this site to pitch their products, especially when it is something as generic as a Bluetooth GPS. There are already plenty of threads reviewing BT GPS devices known to work with the 770/N800. Sub $150 GPS units are exceedingly common. I haven't paid over $50 for a GPS in years. I bought a Holux M 1000 for $30 on eBay recently, which has an MTK chipset known to perform better and have much better battery life than the generic Sirf III specials you are misusing this forum to hock.

Additionally, this site a Buy & Sell forum and a Deals and Promo's section.