You should note that I'm not talking about netbooks. I'm talking about tablet PC's that can do EVERYTHING the iPad can do, including the touch based interface. Hell, they can even read your hand writing and convert it into text.
They're far more versitile than the iPad and far more powerful and on top of that have been around for years. They really do render the iPad obsolete even before the iPad was ever made. The only reason the iPad is doing at all well is because Apple has a load of loyal followers, many of whom don't even know that tablet PC's exist.
Plenty of people know of Tablet PCs. The industry has been trying to sell them for years....but consumers have been rejecting them continually. Dell, Samsung, HP, OQO, Fujitus and many others haven't succeeded at selling them. Most 'tablet' pcs that are out there are regular PCs with swivel screens. True tablet PCs are few and far between. They are also EXPENSIVE. And the OS of choice has usually been a modified form of Windows, which offers only kludgy support for the touch-interface.
The cover of today's tech section in the Wall Street Journal is a glowing review of the iPad by Walter Mossberg. Mossberg has reviewed plenty of tablet pcs over the years and the answers have usually been the same: poor battery life, slow performance, clumsy OS, expensive and marginal benefit. Great for a small niche set of users, lousy for everyone else. Why pay $1200 for a Q1 when you can get a netbook with the same performance for $700 less? Reading my handwriting is all well and good, but I type a LOT faster than I write...and I type a LOT each day. The last tablet PC I had my hands on was buggy and impractical. While I'm sure they've improved over time, they offer little benefit to the average consumer.
The iPad is lacking several features that I consider deal-killers: no Flash support being a biggie, lack of USB connector another, more expensive applications and so on. However, people generally aren't seeking it out because they're mindless trendsetters (though I'm sure there is a contingent of them), but are seeking it out because it fills a need. It offers some pretty nice features, an OS that actually makes gesture-based navigation work and is expansion of an extremely popular design. The excellent no-contract deal with AT&T is nothing to ignore, either. No other tablet PC can offer that.
With support for ebooks and PDFs, the iPad would be great as a reference book at the table. And if WotC doesn't make an iphone/ipad D&D app, they're leaving money just sitting on the table. AGAIN.
I personally think the iPad is attractive but over-priced for my needs. But I think it could ultimately offer some really great gaming options down the line, if the price lowers and Apple revises the hardware as they almost certainly are apt to do next year.