The Wall Street Journal is reporting that ABC and CBS are hard at work adapting episodes of their TV shows for the iPad, with both set to offer streamable programming to new slate owners immediately upon launch. Their delivery strategies diverge slightly -- ABC will use the app that was unearthed (and confirmed by us) this morning whereas CBS will stream through the browser (hello, HTML5!) -- but the eventual user experience will be a commercial-supported affair that should be familiar to those who've used their respective online streaming services already. All that remains now is for NBC and Hulu to fall in line, as expected, and your portable media consumption menu will be complete. It'll also be interesting to see what happens to iTunes Store pricing for episodic TV programming, which will soon be up against free (or in Hulu's case, potentially subscription-based) alternatives.

Update: And here comes the official presser for ABC's plans, alongside ESPN SportsCenter XL and a handful of Disney apps.