Your statement is true, but sort of missing the point of the article. Sure, "many" developers "will" wait "until" Android "proves" better. But some won't, and there is value in being part of the early ones to jump. The article is advocating jumping now and gives some arguments (not all of them convincing IMHO) as to why that's a good idea.

You're just saying that not everyone will take the advice. Well, yeah. :)