I wonder is Apple is grinning

at all this news of mods, or if they're cringing

about it. I'm sure we all realize Apple has much bigger plans for

TVs future, but will we force them to make that future come sooner with all these mods? Guess time will tell. I'll be waiting to see Apple's response to all this before I consider buying one, and also I need a better TV to make it worth it.
Thank goodness for customer's curiosity, and the benefits we all reap from them.
It would be unlike Apple to be completely happy with a modded version of hardware that's sold as closed, but that said Apple hasn't gone after projects like iPod Linux to the best of my knowledge.
My guess is that if people keep trying to find ways of making the @TV a lightweight Mac mini, complete with a fully enabled version of Tiger, they'll take steps to make that difficult, if not impossible. That may include EFI hacks (firmware hacks, preventing the @TV from booting from an unsigned internal or external drive at all) which would be terrible news for the modding community.
But if the modding is limited to using the @TV to run free operating systems like Ubuntu, which may actually be useful if people build TV oriented UIs (like iPod Linux has an iPod oriented UI), coupled with the free DVR software that exists in Free Software land (MythTV? I forget), then from Apple's point of view they're selling hardware to a market that doesn't compete in any way with Apple's stuff, that can be withdrawn should Apple decide it does, actually, compete in some way. In that set of circumstances, I can't see Apple any more effort to close the @TV further than they do the iPod.
Now, some are speculating the iPhone will be semi-open too. I'm not so sure about that. From comments Jobs has made about the security of the device, it sounds like the OS has control over the phone that goes beyond what a typical Smartphone OS allows (typical Smartphone OSes separate the phone end from the opened front-end.) It also sounds like OS X, in this instance, doesn't have a substantial, predictable, well designed, security model that would prevent rouge applications from doing things they shouldn't.
If this is true (and Teh Steve may have been engaging in some kind of handwaving when he claimed opening the OS would put Cingular's network at risk, it might just be he wants Apple to have a lot of control over the user experience in the early days and made this up), then Apple would likely stamp on any attempt to open up iPhone.
Gut reaction: I'd wait and see if @TV stays open. I think it very much depends on the types of hacks people come up with for it. I can't see Apple preventing its use as a MythTV box. It may even be that, with 256Mb of non-upgradeable RAM, they don't consider it much of a threat running *Mac* OS X (ie being the $300 Mac we'd like it to be.) But I wouldn't bet on it.
I wanted one of these things before the hacks started, my major issue being that I need to do something about my other Macs which aren't really powerful enough any more, but boy do I want one now.