I can't say I followed the last qualifier via the website, but as a web developer myself, this is the sort of thing I love - leveraging the web for such purposes.
It's only really feasable to have such detailed info coming in for matches when you're down to two, maybe three matches running at once. It would take too many people, too many laptops to be able to have running updates on more matches than that.
Something else they could possibly look into is text updates on your phone, if folks wanted to sign up for that. I've a friend in the UK who works at the main cricket website over there, and they do running text updates that you can get sent to your phone via SMS. Great for the true addicts.
One of the tricks involved is connectivity at the venue. It's easy enough to set up a little wireless network in a pool hall - but the connection to the net itself is the key. How much effort/$$$ to go into it? Is the venue in a location that has cable modem/DSL available? What's the setup fees? How long will it take to get an install appointment done? Is it worth the install fees if you're going to just shut it down a few days later? Etc. etc. It's something you have to plan for ahead of time.
Streaming video of one, maybe two matches, would also be neat - but again, it's bandwidth-dependent, and also, one would need the necessary hardware.
I do have to say, again, as a web developer, I like the IPT site. It's very well designed. My only issue is with some image "alt" tags with Firefox.
Reading Colin's post above again, re: the live coverage/chat bit - another thing they could do is set up a chat server (either IRC, or something else - maybe a java chat via the website) and allow people to hop into a given channel (i.e. "Smith_vs_Jones"). One person on-site in the channel giving a running update, and the rest chatting it up as they choose. The neat thing about that is that folks could ask questions of the on-site person, who could answer (or not). I did this sort of thing years ago while working at CNN - did some live chats with folks at the '96 Rep/Dem conventions, with me playing moderator and fielding questions from the folks who came into the chat, and putting the good questions out for the guest (politicians, journalists, activists, etc) to answer. It was pretty cool.