One of the finest products to come out of Palm's (erm, HP's) WebOS era is the Touchstone inductive charger. In fact, the Touchstone is so great that it has attracted an active modding community itching to ensure that your Android smartphone gets to reap its wireless benefits. One such crafty modder is forum member Thrillhouse617, who has posted a detailed step-by-step on how to mod your EVO 3D to accept a Touchstone's charge. Fair warning: there's a soldering iron and an Xacto knife involved. If you've got the guts, hit the source link for the full walkthrough.
Source: Android Central Forums