While we know that Nintendo is working hard to get the Wii U out the door, whispers that we are hearing from our developer friends suggest that the ongoing development is causing a number of problems for those trying to build titles for the console.

We first stared hearing about this when a reliable source opened up to 01.net and began talking about some of the issues, which made us want to start digging deeper; and while many didn’t want to talk about it due to agreements that are in place, we found several that confirmed what we read in the 01.net article.

The development unit of a source we spoke with says that the Wii U might be a tad more ambitious than Nintendo imagined and the hardware choices that the company made could be lacking some of the necessary power. The same source tells us that the controller they have does not work correctly yet and they also have no working wireless functionality yet.

The updates and fixes continue to pour in from Nintendo’s hardware development team, which in many cases has created code that has been written to require modification or work to get it running after the latest updates arrive. It seems like they fix one thing and something else breaks or is no longer functional.

While there is still time left for Nintendo to pull it together, it sounds as if it is a challenge to get the software developed and working for the platform. These issues with the hardware could lead to delays with the software, with one development source admitting to us that they are kind of in a holding pattern till the hardware development gets a bit farther along. In the meantime, they will continue to build and work on the Xbox 360 and PlayStation 3 versions of the title.

Some are now suggesting that it could be summer 2012 before we actually see the Wii U arrive. While we know that Nintendo is going to have to work hard to make it happen, we just wonder how many design changes and how much additional work is going to have to go into the architecture to deliver what Nintendo showed us. If nothing else, it will be a challenge.

Read more here in the translated version of the 01 article.