On the camera/phone side of things, HTC and Sony rolled out some megapixels at CES.
~ HTC unveiled the TitanII with the same 4.7" screen as the Titan mentioned above, but a whopping 16MP camera. What's odd, though, is it pairs good still shot potential with pedestrian 720p video capture.
~ Sony unveiled the Xperia ion and its 4.6" screen. It has a 12MP camera and 1080p video capture, making it a stout replacement to any average digital zoom camera. Another neat feature, along the Xperia lines, is Playstation Certification. But like other sub-5"ers, the screen's too small. The PSP/Vita has a 5" screen and that's borderline effective without the need to add control buttons to the touchscreen.http://www.engadget.com/2012/01/09/sony-xperia-ion-att/
Also, there's been a handful of other about 4.5" phones revealed. What was an 'oversized' rarity, now seems to be finding its way into every manufacturer's stable, though they're still much too small to be a phonblet.
To get back to the OP;
the Galaxy Note with its 5.3" screen and Lenovo S2 5.0" are the closet things I've seen to phonblets. They have acceptable size, though another half inch minimum
is really needed. They run Android, allowing them to be a good GPS replacement like an iPhone and unlike crap Windows phones. There's no word on the S2's camera, but the Note has above-average camera/phone ability with its 8MP/1080p video, yet sub-average as a full camera replacement.
Here's hoping there's more to be revealed at CES.