So, we can just about confirm that HTC's newest touchscreen phone, the Diamond, is going to be announced on May 6th. The thing is, we have no idea what the Diamond is. HTC has sent out media invites for a press conference to be held in London on the 6th, where press and analysts will "[w]itness the next wave of HTC innovation." According to the Taipei Times, HTC exec Cheng Hui-Ming told analysts that he expects the company's revenues to increase some 20 percent this year, thanks to the Diamond, which he dubs "the most important product for HTC this year," adding that "[w]ith this phone, we're confident of landing orders from most major operators." At the moment, the rumored specs peg the Diamond as a 3G device running Windows Mobile 6.1, with a large touchscreen, though no one is really sure what it looks like. We have, however, been seeing a few mysterious devices showing up in HTC spy shots as of late, so it could turn out to be something that we've previously seen. Might there be a new premiere Windows Mobile device next week?

For more on the Diamond:
- see this Taipei Times report [1]