It did fall short of what they wanted to deliver as a device probably because it was far too ambitious... but they accomplished quite a bit due to that ambition. Consider that it was conceived of in a time before inexpensive laptops were available. In 2005, a low-end laptop still cost well over $1000. Things like a Chromebook, netbook, Raspberry Pi etc. didn't exist yet. If anything, the OLPC probably got companies thinking sooner and more seriously about the low cost portable computing space than they would have otherwise.