internet - Is Skype becoming a hype?

Last night I switched on Skype for the first time after months to add some friends when suddenly the virtual phone started to ring. First a group of six art students from Guangzhou called up and then an anonymous lady from a place in China she did not want to disclose. The number of users in China is really amazing, I found out. Am I sitting here on the beginning of a new hype. What do you use?