Update: Unfortunately, Tommy Refenes was misquoted, with him merely stating he thinks 2GB would be a reasonable size, and not that the 3DS eShop limit is such.
Original Story: Team Meat were once aiming to get their highly regarded downloadable title, Super Meat Boy, onto WiiWare. Unfortunately, file size restrictions of 40MB stopped the company from ever being able to. Speaking to Nintendo Gamer, Tommy Refenes from Team Meat, explained the situation again. He stated that if they'd had a few more megabytes to work with, they would have been able to bring the game to the service. Furthermore, he added: "You can only compress stuff so much before you have to start cutting out huge parts of your game. Unfortunately, at that point, it just isn’t worth the time."
Refenes has revealed that the 3DS' eShop offers a more reasonable service, in terms if file size, allowing developers to produce games up to 2GB. He also said he'd love to be able to bring their upcoming games to Nintendo's new system, the Wii U.