The dot-com logic of paying big prices to enter new markets has come roaring back,

This is mobile e-mail for the rest of us, who have normal or tiny screens.

After the Yahoo earnings release, people started talking about whether this signals a bubble starting to burst. I don't think so, but unreasonably inflated expectations can potentially create a self-fulfilling prophecy.

The adoption curve will be fast because it's not something that has to be explained, ... People get it pretty quickly.

That's perhaps the most uncertain piece of the forecast. There's a lot of pent-up demand for mobile experiences, but the user base isn't there to drive an advertising model.

There seems to be parallel development going on among all the major players,

There's a lot of miscellany in there that's not particularly relevant coming from the sites I've been to. For instance, there's a lot of stuff on Fox News, which I really don't care about...Over time it will get better. I would give it a six on a scale of 10.

They're trying to do a lot of different things to provide for a variety of needs out there. They've had mixed success. But there's a lot of creativity and they're striving to capture more advertisers.

The wireless stuff is pretty far out. It'll be a few years at least before there is widespread adoption of wireless search.

There is a lot of inertia in the small-business market, which relies on sales representatives to call them or visit.