You should seriously consider starting an app review site.
Which version (level) of SkySafari 3 do you have (Basic, Plus, Pro)? Did you consider Starmap? I have the Pro version of that, which I chose almost exclusively for its ability to zoom further than the basic version (to 4'5" compared to 13.8*). At full zoom, the moons of Jupiter just span the full horizontal display. But, it only zooms out to span 90 degrees on the horizon. Otherwise, the larger database is overkill for me, as I can only see down to mag 9 with my 10x50 binocs on a tripod (no telescope), to say nothing of a lot of telescope-centric features going to waste. It does show an arrow when you search for something -- the arrow persists as you pan in that direction, or jumps there if you tap the arrow.
Until I got my first iPhone last fall, the last good mobile planetarium app I had was (wait for it...) Planetarium on my Palm T/X (R.I.P.), so that was the one to beat. I've been fairly happy with Starmap Pro, but I can't compare it to anything else on the iPhone. SkySafari 3 was on my list, but I can't remember why I chose against it. It may have been that the zoom level was an unknown.
Regards,
Tom