The developer of Gcalc just released Gcalc 2, a newer version with an improved interface with a better look and feel to go with the sexy looking iPhone.

The developer admitted that Gcalc was hit with an ugly stick, hence motivated him to focus on making Gcalc 2 more macish looking. I think he has done a great job with the brushed aluminum interface, interactive buttons while keeping a clean design.

Click over to test drive Gcalc 2.

To operate Gcalc 2, you start by hitting the line keys – W for watts, E for Electricity costs and H to enter in the hours. After hitting the appropriate line key, you then enter in your desired number. Once you’ve completed all three line entries, hit the “=” key to see the result.

The “C” key has two modes – in data entry mode, it allows you to backspace your last entry but in results mode, it resets the display back to original mode for another calculation. So to calculate the cost of a device pulling 75W for 10 hours per day with a 14.5cent per kWh electricity charge, you type:

W75H10E14.5=

When you’re done looking at the result, hit the “C” (for “clear”) key to run another calculation.

iPhone app update – Gcalc 2 [via Techlogg.com]