@jambriz: Hi and thank you for your ideas. Let me start by making it clear that I don't officially work for Microsoft. They hire me (?) as a contractor (?) I guess (?) on a temporary basis ... to create these videos. I'm always clear on what our relationship is, but I know I create videos and they post them. So, a Spanish section of Channel9 is something the full time employees on the Channel9 team who actually work at Microsoft would have to fund and facilitate. I would recommend you use the Feedback link in the footer to make this request known.
Personally, for me, as a tiny fledgling business guy -- a one-man operation with no investors except my credit card -- there's nothing I would love more than to create a product that appealed to a whole other potential audience. The problem is time and money. Maybe that's the same problem: I have almost none of either. There's simply not enough hours in the day to (a ) keep my skills up, (b ) create video content (c ) that can be translated in every language, and (d ) still make a living doing this.
Editing the videos to add subtitles is great, however, it takes time and adds a great deal of expense. Even if I could do it, it wouldn't be a good use of my time. More importantly, I can only do what Microsoft is willing to pay for. We've chatted about it, and I know it's on their radar, however they've not found (to my knowledge) the best cost effective way to do it. Remember ... even though it's "Microsoft", each department only has a limited budget. Some things require the executives to initiate strategically.
As far as promoting someone else's work (other Spanish speaking websites, books, etc.) ... I couldn't in good conscience do that because I don't know what resources are worth looking at. I know there are tons of blogs and websites in English that are a waste of time and I would never recommend them. How could I vet the non-English ones? That sounds like a job for an organization that has the financial resources required to pull off such a site.
And, it sounds like an opportunity for some enterprising Spanish speaking developer to start their own little video screencast training company.
So, your ideas definitely have merit. These are things that have been requested before. I'm just not the guy who can make them happen. Sorry! But thank you for the kind words and best wishes to you in your pursuits.