After watching the sometimes-awkward public debut of Samsung's Galaxy S4 smartphone, research analysts Yankee Group are predicting that while the model will do well in the US, it won't stop the slow gains in Apple's North American marketshare. Calling the device "just another iteration on the Galaxy design to be slightly bigger, faster and with a few new apps," the company echoed widespread sentiment that Samsung may have overreached in marketing the phone as a major upgrade.