Try flashing a CleanEx DsE 6.5.x rom
The bottom taskbar has been remapped onto the hardware buttons.
Now 6.5.x works like it was meant to on our phones.
WM based phone history
: SPV M700 -► HTC Touch Diamond -►HD2
Android based phone history
: ►HD2 -►HTC Desire -►HTC OneX
: Unlocked Unbranded HOX on O2 UK
: ViperX 3.2.0