You've got a matter of hours before your life is changed forever by the long-awaited, endlessly-discussed, hundreds-of-millions-of-hits-famous Apple iPhone. And yet with just minutes before it goes on sale, information about the device still continues to change, adapt, and grow. Here's a roundup of what's hitting the wires this morning, should iPhone be on your shopping list for tonight.

First, Apple now says it may not have enough phones to meet demand. Early reports said Apple would have up to 3 million phones available on day one, but that appears to have been overstated. Now Steve Jobs is saying that the company might not have enough phones to meet demand. I've heard other comments (equally unofficial) that stocks could run out by Monday. But there's no need to stand in line for one: You can order the iPhone online for delivery to your home or office! (UPDATE: This may be a bit overstated. As of Saturday, every Apple Store in the country still has iPhones in stock. On the other hand, online orders won't be delivered for 2 to 4 weeks.)

Curiously, reports are surfacing that AT&T has managed to boost the speed of its much-maligned EDGE network, possibly doubling it. At 200kbps, the service would still be fairly slow (only four times dialup), but easily twice what standard EDGE gives you. This has been a major complaint in early reviews of the iPhone. AT&T seems to have been taking a brute force approach to increasing the speed of the EDGE network by simply running more cable to its cell towers. The results aren't the 3Mbps or so of real 3G services, but every little bit helps.

Business users who want to get work email on the iPhone can rejoice now, as the iPhone can indeed support Microsoft Exchange email, provided your IT department makes the appropriate changes. Send this link to your friendly IT guy. Trust me: He loves getting questions about the iPhone! You're the first person who's thought to ask about it!

Meanwhile, the Apple Faithful™ are lining up like lambs to the slaughter at Apple stores around the country. The scene at these stores is obviously expected to be a madhouse. If you want a better shot at a short wait for the iPhone and you absolutely have to have it tonight, for Pete's sake, go to an AT&T store, which will almost certainly be far less crowded.

I'll add to this post with any other late-breaking iPhone news later today. But I'm hoping that this is it for now. Expect my full, hands-on review come Monday! 

(UPDATE: My full review is now live!)