This was hinted at when HTC announced its HTC Rhyme and we saw Dropbox installed as a pre-loaded app, now HTC has confirmed it. Future buyers of HTC Android phones get a useful 5GB of free Dropbox storage space.
We're still unsure if there will be any retroactive application of this deal to older HTC phones, although with millions upon millions of HTC Android devices already out there today, it's almost certainly too much to ask. But we'll ask.
If you still haven't surrendered to the Dropbox phenomenon, the basic free accounts come with 2GB of cloud storage space. HTC's giving its users an extra 3GB for nothing. [HTC]