> It's interesting and a little surprising that none of the PC-based instant messaging services popular in the early 2000s were successful in making the jump to

> It's interesting and a little surprising that none of the PC-based instant messaging services popular in the early 2000s were successful in making the jump to mobile I've read that it comes down to how at the time of the shift, companies were realizing that there was just no money in running IM networks, so they were unwilling to invest much in them.