Simple Message Latency Graphing

[djhalliday]

Proof of concept graphing of message latency would be a very powerful tool for on the ground testers.

After some searching, it looks like http://www.achartengine.org/ is probably the best option to attempt this. It's free and open source, plus it doesn't use any webviews like some other options, which appear to slow those down considerably.

Other potential solutions include:

• GraphView (http://android.arnodenhond.com/components/graphview) -- Free but not the greatest look & feel
• Java Charts for Android (http://www.java4less.com/charts/chart.php?info=android) -- Seems to cost a fair amount for licensing