The size and scope of Apple's developer program remains a bit of a mystery, but Apple has already shown off demos from online auctioneer eBay, mobile social-networking start-up Loopt, blogging service TypePad, the Associated Press and game developer Pangea Software.

FORBES: Magazine Article

The size and scope of Apple's developer program remains a bit of a mystery, but Apple has already shown off demos from online auctioneer eBay (nasdaq: EBAY - news - people ), mobile social-networking start-up Loopt, blogging service TypePad, the Associated Press and game developer Pangea Software.

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Many national funds' websites "provide demos of their online systems" so that donors understand how the systems work prior to setting up an account, says Kim Wright-Violich, President of Schwab Charitable.

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Xbox Live, Microsoft's online service, has grown in the last four years to incorporate game demos, trailers and movie trailers alongside offering an online gaming experience with downloadable content and extras.

BBC: NEWS | Technology | PlayStation embraces online world

When demos at CES held nearly 12 months ago promised a svelte, online-enabled feature set not available on regular DVD to take the high definition formats to the next level, we were admittedly excited -- unfortunately, we're still waiting to see what the fuss is all about, and it looks like we'll be waiting even longer now.

ENGADGET: Blu-ray / HD DVD "Live" internet functionality still on hiatus

Ads placed in demos could count the days until the game's release, provide a link to an online store for advance orders, and switch to promoting other games from the same vendor once the game comes out.

ECONOMIST: Advertising in videogames