The HTC Sensation (aka, Pyramid) handset doesn't officially exist. But hey, if you're Qualcomm, why let a partner's own marketing plans interfere with your own need for self-promotion? What other motivation could have prompted the Tweet above from Qualcomm's German Twitter account? Stay tuned, we expect to learn a lot more about this not so mysterious handset during HTC's press event later today. Until then why not peek the video a