Phil - I think that with the new company structure in place, we'll see a concerted effort to pass the competitive product - and see it work on all major phone platforms to boot. Give it time....
It would be nice to have a "what's up when" chart - and I know that Carina was asked... so maybe soon given their development rate. That would be very nice indeed. It's about the only reason I still have StarMap at all.
As far as Tak usability goes, I run my Temma2 via this and my SkyFi - and with polar alignment sorted it aligns on a single star of course with no problem. As far as finding objects to photograph, I usually end up very close with the single star alignment - I'm just wondering why two would be essential to you? As a field setup goes it's pretty phenomenal.