Handheld Gaming Console?

What should i buy?The Nintendo 3DS is coming out in march while the Sony PSP2 is going to be announced soon..i've set my sights on the 3DS cause of its 3D gaming..on the other hand rumours of the PSP2 specs is really mindblowing..the only bad thing about the 3DS is its battery life 3-5 Hours of gaming with a charging time of 3.5 Hours..what should i buy?