The Webmapsolutions gang have been doing some really cool, cutting edge work developing mobile apps and services with the ArcGIS APIs for Blackberry. Using an ArcGIS API vi a custom app developed to run on Blackberry Playbook, the guys at Webmapsolutions have created a custom tool using the Playbook’s built in GPS to make a call to the SimpleGeo servers to retrieve location information that is then used to integrate checkin data and functionality into a custom app. In this case the checkin is actually used in a more commercial type of app rather than purely for gaming or fun… an interesting concept! Imagine a mobile field worker using the widget to checkin to a job in the field, doing so results in data and other relevant job data being pushed to the worker – pretty cool stuff! See more details in this article