Kik Messenger now has 50 million users and is on pace to reach 100 million by year's end, Josh Ong writes. The Kik Cards HTML5 applications have been a hit since their introduction in November, with five available now and plans "to build Kik Cards into a full-fledged app ecosystem," Ong writes. Now the company is releasing in-app push notifications to the Cards, which it claims is an HTML5 first. CEO Ted Livingston attributes the success of the app to the employment of user names for IDs instead of phone numbers, encouraging social sharing even to strangers.
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