Hi Vertexx,
Sorry it took so long, I have a dual boot system and had to switch over to XP to test. I have a license for both the full and commercial version, but lost my registration for the commercial version when I built my Windows 7 machine.
What an idiot!
Anyway, I created a small html game and it came up with the "powered by" message at the beginning. I don't think its an issue to remove, but if you have qualms about it, might I suggest having your first frame be pure white with a timer of say, 1 second? Then go to your game menu. I don't know what it would do, but there is always a way around things.
Until someone gives you an official answer, thats what I have.
Oh, I believe that AM creates html which can be used on the Iphone. It doesn't create an executable for it. Someone else can confirm this since I don't create Iphone games.