This whole third-party issue need not cause so much worry.
Why? Because ever since Nintendo themselves discovered the amount of trouble they were in, with regard to third-party support, they have been working around the clock to re-attract that support, and work with them, in mutually beneficial ways, and they´re gaining more support every month! Just look at how many companies support the new DS! And this is no GB or GBA platform, even though it can play GBA games. So it´s remarkable, because it could have been just the opposite! It´s an entirely new system, and Nintendo have no problem getting the third-parties to develope for it!
I really don´t think that it will be nescesarry to rally for third-party support! Those companies who make games, know well that Nintendo exist. And to run around getting people to tell them "Support GameCube!" would probably create just the opposite of the intended response: annoyance! You can bring a horse to water, but you can´t make him drink! Unless he want´s to!
Let them come themselves, let Nintendo do the job. Afterall they´re the only ones who can talk to the companies on a strict business-level. All we could ever do, would be to fill up their mailboxes with too many emails that would most likely go unnoticed for lack of time to respond. Some of them simply don´t respond to consumers because they´re busy making the games.
Really, if the current list of NDS games in anything to go by, we´re not having a thing to worry about come Nintendo Revolution. The attention and success of the NDS (it´s virtually sold out already!), will spill over to the next aforementioned new platform! And a new Nintendo success cycle is born, and we´re in videogame heaven!
This is not the time to get emotional, but a time to understand w h y all this started!!!
It´s all about what Nintendo did before and do from now on and forward, all of which will be closely monitored by all the third party developers. Afterall, it was Nintendo themselves who, for fear of piracy, created the cartridge based game platform called Nintendo 64 which started the whole problem. Not to mention the issue of the very high licensing fees. Developers today look at the risks involved at throwing millions of dollars into a game project and perhaps never seeing any profits! If they assess that the risk is too high, they wont do it! And they will completely forget it, if Nintendo´s own way of treating them is wrong. And this was the case before, but nolonger.
So I don´t think there´s anything to worry about!
Clearly Nintendo now understands, having clearly expressed so publicly, and have on multiple levels undone past mistakes, so both the developers and the consumers are happy (I really sometimes wonder if this had anything to do with the transition of power from former NCL President Hiroshi Yamauchi to current new NCL President Satoru Iwata! Yamauchi comes from a time where things were not so easy in Japan, and therefore was of the Old Order, tough and sturdy like the Samurai, not easy to negotiate with, while Iwata is more relaxed and affluent, having grown up in a society which was far easier to live in and therefore much more light at hearth and more diplomatic).
Satoru Iwate video interview
here