I have an iPad at home and an iPad on the aircraft panel. I have both sky demon and runway HD. I use one ipad for home planning (along with browsing and angry birds!) and the other for nav. Prior to using SD I always had an airspace aware and garmin 496 (which remains as my backup). Now the garmin seems horribly dated. I have been enjoying using SD but have had a nagging feeling that I was missing the official CAA charts, particularly because I could glance at the GPS and then find my place on the paper chart easily.
Well... Last night for was my first fly with runway HD instead of SD. Conclusion: it's much worse than SD. The CAA chart can only be north up, it's cluttered, it doesn't zoom without being unreadable. Contrary to my expectations it seemed old fashioned relative to SD. In addition, what's with the puke green aircraft?

anyway, back to SkyDemon for me having properly sampled competition. And the latest SkyDemon even has a couple of new features I emailed Tim to suggest! Great software, great guy.
-Carl.