Well I was speaking more from a developing point of view, but yes the screen on GBA was hard to see. But even then there was a good reason. Nintendo have fairly high standards where it comes to battery life. For years people have said their handhelds were 'worse' than the current rival (Lynx, GameGear, PSP etc.). But Nintendo have always understood that battery life is extremely important. And that's one of the main reasons why they've lead the field in handhelds. Every rival has been more or less crippled by poor battery life. It's not like Nintendo don't know how to make a machine with PSP level graphics - it's just that they know the power consumption is too great to be practical for the intended use. It would have been easy for them to make a handheld GC - (develop a low-power version of a great chipset which already exists, the disks are the perfect size) but it isn't yet practical.