The eBay Developers Conference in Boston this week inspired the creation of some cool apps that bring eBay into the Web 2.0 era. For example, this Flash-based eBay portal can be embedded into social-networking profiles and blogs. It can be customized to include single auctions that come with the standard price, bids, time left, feedback and high bidder. Or you can select from three different search boxes, which you set to a predetermined keyword.