Nintendo has released a UK launch trailer for 3DS XL ahead of the system's European release tomorrow. As Nintendo points out, 3DS XL has the biggest screen ever on a Nintendo handheld. The system's 4.88-inch upper screen is 90 percent larger than the size of the original 3DS's LCD.In our Nintendo 3DS XL review we praised the redesigned handheld's friendlier 3D presentation and improved battery life. For those thinking about making the jump to the new handheld, we've done a little leg work and rounded up all the best 3DS XL deals.