This isn't good news. Although still less bad than Facebook buying it...
Skype sucks on Android, and last I checked doesn't even have emoticons on iOS. Certainly wouldn't be a smartphone app' I would invest in.
To be honest the entire IM/Video/Voice Chat market is a cesspool of *. You have AIM, Skype, Live .Net Office MSN Messenger 2011, ICQ, and a handful of others fighting it out for who can make the worst user experience imaginable.
Skype is, depressingly, the "least bad" option currently around but they could be very easily usurped by anyone who is able to make decent software and has deep enough pockets to hook it into the world's telephone networks.