when do you think the DS will become obsolete and be replaced by something new?

how far down the line do you think the DS will be replaced with a new nintendo handheld system? by that time do you think the psp will be in control of handheld systems?

I don't think the DS is going anywhere anytime soon. Its still selling strong and still has plenty of awesome games.The PSP and the DS however are two different things. Sony is going for a portable console while Nintendo is going for the more casual gamer. The PSP will never dominate the handheld market. People just aren't taking to it. Nintendo is the handheld king and always has been. Besides with games like Ninja Gaiden and Pokemon coming to it, it'll be a long time before Nintendo replaces it.

I think the DS will last for a few more years, but will eventually be phased out by something new, like the GBA...although the GBA is still doing surprisingly well for some reason, so the DS could follow suit and have a very long life span.

As far as the PSP goes...meh, I couldn't care less