Yes, exactly.... They have been badly ported. If it can be ported just as well with a bit of care and thought* then it's hard to construe it as a bad thing.

By all means, I agree with you on badly done conversions, and can see why games are developed 'exclusively' for one system or another (the logic is easy to see). I just wanted to chuck in a bit of a pro-multi-platform opinion from a consumer point as well as from the the developer's viewpoint that Sharingan pointed out.

* Yes, I know that's a rarity thanks to money/time constraints and rampant greed.