The Nintendo DS line has had many redesigns up to the present 3DS, but one thing that hasn't changed are the tiny, easily lost cartridges. Enter Memorex's $20 Universal Game Selector Case, announced as part of its gaming accessory lineup for E3. The UGSC stores up to three games and hooks up to the cartridge port on any DS, letting you swap between them using a signal routing switch. We've seen cases similar to this in the past, but Memorex's take is the first to support 3DS titles as well. Based on the renders, the unit looks to make for a weird