Rollout Rollout already exceeds 140 cities
Still, about a third of companies frown on using personal smartphones for work tasks, Forrester finds
Small bits of work, linked by the cloud, can be done by more than a million people globally
Download of app to Nexus S phones on Sprint to begin
Smartphone for LTE network is priced at $200 less than Verizon's Droid Bionic
The Signals Research study also found poorer-than-expected network latency
Application works with one Sprint phone, the Nexus S, and a Citi MasterCard
Carrier expects to have faster wireless service in 15 cities by year's end
No plans to rely on near-field communication
With Windows 8 in pre-release, focus now shifts to tablet developers
