Not sure who says "Honeycomb only has 600 apps", I don't hear that. Rather, I hear the accurate "Honeycomb only has 600 tablet-optimized apps". All 400,000+ iPhone apps upscale on the iPad, not a big deal.
It's that the iPad has more than 120,000 tablet-optimized apps, ones that take full advantage of the larger screen, the fact that you hold and use it differently, the potential availability of multiple hands, the space to display things like lists and summaries and details and options simultaneously, that multiple people can reasonably see the screen at the same time, etc.
That is a difference between the two platforms, a very real and, for many, meaningful difference.
I'm not saying that's what's been discussed here. But I've seen the argument made by reviewers...usually when they're in the midst of complaining about Android Honeycomb devices, or justifying lower scores etc.
Now that I've been using one, I can say I really haven't been finding that many that were not optimized, yet would benefit from being so. There's one for seeing issues of Canadian newspapers, and yes, it's not great. But many of the ones that are not optimized for tablets still seem to work pretty darn well, and make effective use of screen space.
Your statement is not incorrect. But I do feel that the case is a little overexaggerated. If you play with many of these apps that aren't optimized, they still work pretty well.
And, at the end of the day, apps are one of Apple's advantages.
But with Honeycomb, you've got higher resolution screens, most have much better connectivity, ability to use Flash, better implementation of notifications, better multitasking, etc.
So it depends what someone's looking for. If they care more for apps than for those other things, then go Apple. But one has to question how much it truly matters.
Time will tell. More and more Honeycomb apps are coming out. And once Ice Cream Sandwich hits, it won't even be a relevant discussion, I'm thinking.
Banshee