Now that the iPhone 4S has been announced, you can bet that Samsung and Google will be doing everything in their power between now and October 11th, when these two companies will take stage to unveil their latest collaboration. The blogosphere erupted in disappointment as Apple’s conference came to a close without some earth shattering re-invention of their iPhone, and Google will take that disappointment and work it into a hype storm for their soon to be announced offering.Most commonly referred to as the Nexus Prime, this device will in all likelihood be the third in a line of “Nexus” devices, phones that have been guided into the world by Google and their partners. There’s heaps of speculation surrounding not only this device, but also the release of the next iteration of Android, which the next Nexus will have first. So, what do we actually know about this phone?Contact chargingThis feature is actually an artifact from the Nexus One, with the ability to use a charging dock without inserting a plug into the device to charge. Additionally, the contact charger in the car mount for the Nexus One could detect when you put the phone in the car dock and immediately activate the Car Mode feature. This feature was removed from the Nexus S, and was sorely missed in my opinion.The contact dots are along the side of this device instead of the bottom, which leads me to believe that the docks for this phone will be landscape. Dots like this are not used for any real amount of data transmission, which leaves me curious about things like a home theater dock. I suspect that Google has something a bit more elegant in mind than a HDMI-out when it comes to putting video on your TV. Will we finally see an Android competitor for Apple’s AirPlay?Curved GlassThe Nexus S sported what was called a curved glass display. An iFixit teardown after the release of the Nexus S revealed that the glass on top of the screen curved slightly at the bottom for the soft buttons on the device. Based on the image we’ve been shown, it doesn’t appear that this device is curved the same way. If you remove the blue line, the optical illusion of the curve on this device goes away to reveal an actual curve where the screen is.At its thickest point, the phone doesn’t seem any bigger than a Galaxy S2, but the curve in the screen is a very different design from the current Samsung phones. Much like the Nexus S, this curve seems to be a design encouraged by Google, perhaps as a scratch deterrent when the phone is set on the screen, or maybe as a way to guarantee that Apple won’t be able to say that this phone is similar to the iPhone 4/S. The curved feel of the Nexus S is a great feel in my opinion, and I think a similarly designed phone will be well received.Screen Quality IncreaseA GSM Arena leak with some interesting numbers on a screen seems to confirm that there was a device out there with no soft buttons. The 720p Super AMOLED screen looks legitimate based on Samsung’s reveal yesterday.This phone is clearly razor thin, and the buttonless bottom of the phone lends nicely to the next iteration of Android. As tablets running Honeycomb seem to have no need for buttons in exchange for software, it would make sense that the phone would go the same route, and we know that Ice Cream Sandwich is supposed to be bringing the branches of Android together to a single, cohesive user experience.Final thoughtsThere’s no doubt in my mind that Samsung and Google have something big planned here, and coupled with the next version of Android this phone is sure to be popular on whatever networks it lands on.We’ve heard rumors for months that Verizon is pushing hard to be the candidate for the next Nexus, some even going so far as to claim that the device will have LTE onboard. As I said earlier, Samsung and Google will be taking full advantage of the time they have here to drive the hype machine right into San Diego’s convention center next week. In the mean time, check out the teaser video.