re: Microsoft Windows 8 Apps Get Preview Site
The PreApps Windows support just started last week, and it's hard to tell (judging by the dearth of comments) how much attention Microsoft's announcement post has received. As far as I know, Microsoft hasn't made any other big proclamations about the partnership, and the next few steps will involve cultivating interest through local developer events.
I'm sure they'd hoped there'd be more than three apps by now, but given the marketing approach, it could take a little time to build buzz. Still, you bring up the big challenge the site will face; with thousands of apps submitted monthly, PreApps, having accrued only a few hundred submissions, has a long way to go. They're not making bad progress for a two-month old company, though, so we'll see. On the flip side, what will the site do if it explodes of all sudden? The pretense of giving indie developers exposure will become harder to manage if there are thousands of new entries each month.