This is off the Carina Mobile (Voyager) website David:
I have a BlackBerry/Android/Windows Mobile/other mobile device. Do you have a version of your iPhone apps for my device?
No. The only mobile devices we currently support are the iPhone and iPod Touch. If/when we release versions of our applications for other mobile devices, we will announce them very publicly on our web site!
From the website of StarMap Pro:
Can I run Starmap on other phones ?
No, Starmap is exclusively designed for the iPhone and iPod touch.
I think they'll all be of the same opinion until Android becomes important enough to them. It's moving quickly (in terms of initial sales) but has a hell of a way to go in total numbers until there's a large market for it yet. At least Carina isn't discounting it!
Windows 7 / Android / Blackberry