That quote refers to their new 'ALL ACCESS GAMING' model. They are quite friendly towards 3rd party software now because that is the only reason the PS1 & PS2 had stolen the crown.
Their dev kits are the same as the Gamecube and use the same API but contain more libraries to take advantage of Revolution's features. So that already helps out current GC developers big time.
If the rumors are true, their cpu will be marginally more powerful than the XBox 360's but the GPU will greatly surpass it.
Interestingly I noticed that neither the XBOX 360 or PS3 have a dedicated sound processor...this means the cpu will be generating sound. The GC has a sound processor within the Flipper chip as well as a separate 16MB of memory directly accessible by it. If Revolution also has a dedicated processor then that will be one less thing that the cpu has to handle...so in effect, it could seem more powerful in real world applications...which is where it counts...
I cite this:
http://www.gamesindustry.biz/news.php?aid=8851 It's also worth noting that Nintendo has traditionally cited more realistic figures for the performance of its consoles than Microsoft or Sony - who both tend to manipulate the figures in ways which are by no means untruthful, but which don't give a realistic view of how the systems will perform in real world conditions.
Last generation, for example, Nintendo's graphics performance figures for GameCube were significantly lower than the PS2 and Xbox figures - simply because Nintendo cited figures for fully textured and lit polygons per second, while its rivals cited raw throughput figures that would never be achievable in a real videogame.
Sony and MS like to throw around numbers... Keep it real.
