This is a link to David Hunt’s DYI very interesting project to build a GSM Phone based on a Raspberry Pi. The project can inspire to various implementations where GPRS may be needed, also for situations where you may need to run on battery.

Here is David’s run-down of component costs. Please be sure to check out his video demo as well.

Costs:

• Raspberry Pi Model B – $40
• PiTFT Touchscreen 320×240 – $35
• 2500mAh LiPo battery – $15
• SIM900 GSM/GPRS module – $48
• DC-DC boost converter 3.3V – 5V 1A – $10
• Cables, connectors, switch, etc.  – $10

Total: $158

From the Splunk blog there is a simple step-by-step instruction of how to install a forwarder of data from you Pi into a Splunk instance on a Mac/PC.

It could be to capture log data from GPIO connected sensors.

http://blogs.splunk.com/2013/10/21/how-to-splunk-data-from-a-raspberry-pi-three-easy-steps/