I've seen a lot about mobile web technology lately, but I also have to point out that not much has been said about wheter the technology is APPROPRIATE or not.
As someone else on here pointed out, this is a great article: http://www.alistapart.com/articles/landwarinasia/
I'd say that for most businesses, mobile web apps aren't needed. I personally don't plan on buying someing from, say, Amazon.com using my cell phone. Nor do I expect people to be visiting my web desing business site on their PDA. I, peronally, do very little web surfing aside form some news stories on my cell phone, becuase, frankly, it's a clunky interface to even make phone calls from!
I'm not saying that its an irrelevant issue, I'm just saying that poeple need to consider whether they really NEED it or not. Then figure out HOW to do it.