The 3DS has had tough year in the gaming press it seemed like you couldn't go a month without being the focal point of some gaming community calamity. One of the bigget bombsells to hit the console its owners was the cancelation of Mega Man Legends 3. Much like Duke Nukem Forever, some fans had been waiting for the game for nearly half their lives. Unlike Duke Nukem Forever, the gaming press seemed to actually enjoy Mega Man Legends 3. Chris Hoffman of Nintendo Power played the prototype version of the game, and he really enjoyed it.
For that reason and many more, fans are still rallying to get Capcom to finish the game, or at least release the already completed Mega Man Legends 3 prototype on the 3DS eShop. On top of that, ex-Capcom head of R&D Keiji Inafune asked Capcom if he could help keep the project going, but they turned him down. It seems the bad PR for the company just wont die.
Personally, I love it when fans work in creative ways to get their voices heard, up until the point I hear the word "boycott". Expressing your love of videogames by refusing to buy the games that you want to play, thinking that it will teach game developers/publishers a lesson, is a terrible idea. The only lesson thing that teaches developers/publishers is to make even fewer games for the fans in question. If hundreds of thousands of fans decide to boycott Resident Evil Revelations because they didn't get Mega Man Legends 3 on the 3DS, not only will that make the revival of Legends 3 all the less likely, but it will also tell Capcom that old school-style Resident Evil games don't sell either, and/or that the 3DS isn't worth developing for.
If you want to show Capcom that you're serious about buying their games, not buying their games is probably the worst way to do that, right?