New answers tagged htc-desire
You can download a ROM from TechTuple, copy it to your HTC Desire A8181, and flash it via CWM recovery.
You can install the Xposed framework on a rooted device. There are numerous modules that will enable softkeys on the device. Have a search in Xposed in the "Downloads" section for "softkeys". One example is here and it has the Android L style soft keys. In case the article goes down here's the XDA thread with the apk
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