To the the folks that do not have the Iphone and maybe an HTC will they run a Nav program with Active Captain?
I'm pretty qualified to answer that question.
There are currently 8 nav products for iOS with ActiveCaptain integrated. There are currently 3 nav products for Android with ActiveCaptain integrated.
The ActiveCaptain Companion app and the upcoming ActiveCaptain Locations app work equally well on iOS and Android (and Windows, and Mac OSX). For what it's worth, DragQueen is also available for both iOS and Android.
There will be more coming for both platforms - multiple new products are in development by other navigation companies for both platforms with ActiveCaptain support.
There's support coming for the new Apple Watch (you'll want one if you cruise along the ICW - it's very slick!).
In general, the navigation apps with ActiveCaptain integrated are higher quality on the iOS platform than the Android one. People who buy the Garmin BlueChart Mobile app absolutely love it. Chesapeake Bay Magazine just rated the Garmin app (available for iOS only) as the #2 best boating app in their June 2015 Best of the Bay issue (ActiveCaptain was #1):
http://www.chesapeakeboating.net/Pages/Best-of-the-Bay-2015-Winners-Results/winners-results-5.aspx
If you've gotten to 2015 and haven't bought a smartphone yet, you should get an iPhone. It'll be easier to use and you'll have many more choices for apps. I'm not saying that Android is inferior. I love Android and develop all these app for that platform first because it's better for developers. But the market today leans heavily toward better apps for iOS for a variety of reasons. That will surely change in another 5 years but it's true today.
If for some reason you've avoided this higher-end mobile device world but consider yourself a more technical guy, then you might be happier with Android.
There are some generalizations in my comments, but that's the nature of this type of decision.