Hey,
So I've been using this for a couple days and I really like it, makes running sab/newzbin remotely much more pain free than from the safari browser. That said I think it needs just a few changes to turn it from a good app into a great one.
A) Sabnzbd control
With sab 0.5 apparently adding in mobile templates it would be nice to see this portion of the app expanded a bit to add things like queue control to switch the order for things downloading. As others have already mentioned, a history tab would be nice too to make sure things successfully completed etc.
B) Newzbin
I really like the improvements on newzbin search. The longer, separate attributes portion was needed, and bookmark control is nice. One improvement here would be separate pages to organize search results, instead of one long list of 50 or 100 hits. It can be troublesome sometimes when you're half way down a list of 70 items and you forgot which one you wanted. I think it would just be easier and more organized if you had pages of say 25 or so, or however many the user wants to display per page. Also, sometimes the titles of the files can be longer than the allocated space for names, maybe add an extra line or two for text here? Occasionally, when looking at the comments for a file where it has to load the newzbin page inside the app, it crashes, even on my 3gs with plenty of ram to spare. Not catastrophic but it can be annoying at times.
Finally, as has been said before, more support for different search providers would be awesome, specifically nzbmatrix. Newzbin is my go-to site, but occasionally it's missing files and for that I head over to nzbmatrix, which is almost equally as popular I would say. Having support for this, and in the future other sites, would be great.
Again, this is an awesome app with just a few minor quirks. Thanks for the work, I look forward to future improvements, and if anything I said is already being worked on a heads up would be appreciated so we know what's coming. Thanks!
Edit:
Oh and just one other thing I remembered, adding search to the categories section under newzbin would be awesome, so you can search through the categories to narrow your hits down if you so choose, instead of just having everything under that category listed. Thanks again!