The Wall Street Journal is reporting that both 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 respect