Portland mobile software developer Urban Airship has acquired Palo Alto, Calif.-based Tello, a startup that focuses on Apple's online wallet Passbook.
The all-stock deal, Urban Airship's second acquisition, reflects the Portland company's ambition to soar into new markets in mobile technology.
"Three-and-a-half years ago, when we started this, I had no idea we were going to grow this fast," said Scott Kveton, Urban Airship's chief executive and co-founder.
Urban Airship now employs more than 100 people, double twice as many as this time last year. Kveton said he expects his work force could double again next year.
Read more at OregonLive.com.