By Patrick Avenell (Follow me on Twitter)

Expect some awkward moments tonight when Vodafone joins HTC to launch the Salsa and ChaCha handsets in Sydney.

After the Desire S and Wildfire S were launched exclusively with Telstra and the Incredible S with Optus, this should be Vodafone's night the dance in the glow of both the moon and HTC's reflected glory.

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Unfortunately for the troubled telco, Telstra has done its best to gazump them, announcing on Monday morning that it will launching the hotly anticipated Sensation handset exclusively sometime in July.

Already this year, HTC's admittedly quick-footed spokespeople have fielded tough questions at the HD7 and Desire S launch, but even their Benji Marshall-esque evasiveness might not be enough when the inevitable questions about the Sensation are posed tonight. will be at the launch tonight. Follow all the developments live on Twitter or check back tomorrow for all the details.