I have iPhone interface almost ready for any HN-like site that's written in Arc. Supports voting, comments etc. I'll release it at some point as beta on newmogul.com and then as source. If you run a site based on Arc codebase, let me know if you want it early.

Is there any other tool with a similar focus?

I'd love to have an iPhone/mobile specific social news site. I like the slinkset, HN and reddit type engines.

Nice. I also enjoy this one a lot

http://www.icombinator.net/

oh nice, didn't know about that. i think i'll use it instead :-)

Am I the only one who thinks HN works really well on the iPhone? I've never had any problems using it, but as there's like 2-3 of these iPhone versions I guess I'm in the minority.

It works, but there's too much scrolling/zooming required to read comments.

I think it works quite well, although I avoid voting on comments on the iPhone, as it seems far too likely I would accidentally hit the wrong arrow. Otherwise, grand.

i mostly wanted links to open up in separate windows so i didn't have to go back after reading something.

The main thing I dislike about this is that the domain isn't shown. But neither this nor iCombinator does as good a job as the main HN site at displaying a lot of information in a small amount of space. There is no need for iCombinator to have three lines per entry, and I think that your one needs to display more information.

I would really love to have an iPhone app that allows me to read and comment on HN (as opposed to just browsing with Safari). Something similar to the SFNetNews app for reading Slashdot, etc. I was thinking of writing one for HN since I haven't been able to find one and I figure it will be a good first-iPhone-app for me. :)

Definitely needs comments. I visit HN for the comments more than the links. icombinator.net does a great job with that.

I just got a server error trying to load a comments page with > 100 comments ;)

Still wish there was a way to make safari open a link without loading any images. When I have poor reception or know I will only have, say, another 5 seconds of reception (subway leaving the station) it helps to know a page can load nearly instantly.

Comments and a favicon please!

donezo!