Cool idea, makes sense! 140 characters of text, 6 seconds of video, now 36 seconds of audio...what's next, 12 seconds of video where the audio cuts out after 8 seconds and the description can only be 72 characters? :)
For real though, audio is an awesome medium for these constraints. Podcasts are great, but most are so long I have to spread them out over multiple sessions. Looking forward to seeing how this goes!