Honestly, I had a similar first impression. But as I used it more, and saw iPad-specific apps begin to appear, it really is it's own device. If anything, the iPhone is a smaller, less functional clone of the iPad.
I can grok that, though for me I found myself going back to my MacBook Pro because the iPad needs propping up and is too slow (browsing). Ignoring slowness, admittedly a problem for any tablet in my opinion.
I don't think it's funny, I think it's a case of Apple identifying genuine weaknesses with the product and addressing them - it's what they should be doing.