Something like eBay accepting bitcoin would have been like a Bonsai of global adoption. The degree of global spread eBay has would have great for bitcoin advertisement. Hopefully someday they do integrate bitcoin.
Yup that'd have been a major step in promoting bitcoin and making it popular among general masses and populace... eBay accepting bitcoin would have allowed a large number of population a chance to get to know about the bitcoin and bitcoin community and what it would mean to use the e-currency for making their transactions...
Hope such large corporations do someday integrate bitcoin as a method of paying and accepting for their purchases...