According to ABI Research, mobile data applications and services used by business customers will generate over $100 bln in worldwide revenue by 2012. Although voice will still generate the bulk of revenues from business customers, mobile data services revenues will become 26% of ARPUs by 2012, a 29% compound annual growth rate. Combined revenues from all mobile business categories (including voice services) will grow from $242 bln in 2007 to $389 bln by 2012.