With YouTube and Vimeo both offering HTML5 alternatives to Flash, the video tag seems to be gaining some traction. It’ll be interesting to see how much is left of Flash usage on sites once simple video players are a matter for built-in browser features.

For now though, the video tag is encumbered by patent troubles, which in turn leads to cross-browser support problems, as outlined by Gruber, and debated further by Ian Weller. Robert Accettura has a good run-down of the complicated situation too.