Nokia users suffering from Obsessive Compulsive Disorder, stay away. The Finnish company has released an application for S60 phones which will measure and chart power usage, giving you one more thing to obsess over.
The Nokia Energy Profiler will show you just how much juice the WiFi and Bluetooth are pulling, and you'll be able to spot which poorly coded applications are killing the battery. It even exports graphs, or, for the true stat-junkie, Excel.csv files.
The real advantage, though, will be when developers start tuning their software to go a little easier on resources. Nokia seems to be hitting this power saving thing from every angle, which is good for the environment, and even better for users.
Product page [Nokia]
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