[HD2 Windows Mobile 6.5 Themes and Apps] hyellow:
I am not great at Photoshop at all, but here are some sugestions that maybe you can turn into something nice.

It's a slider full qwerty phone.

First:

5" multi touch capacitive touchsrcreen with 21:9 aspect ratio.

Yes, 21:9, it makes the device looks tall, but not wide. Almost same length as the older nokia 6210 phones.

Screen is almost from edge to edge, at least for the sides. The top and bottom have little room to house the three touch keys Only visible when needed) for windows phone. At the top there are the light sensors and videocall camera.

It'll be either WVGA or SVGA.

No more scrolling to left or right. Only need to scroll up and down.

Also, watch movies in the cinamatic aspect ratio.

In the future, this screen could be 3d. With polarized glasses instead of heave and expensive active shutter glasses. With dual front camera's to make videochats with your dear ones in 3d.

Second:

Stereo speakers are located at top and bottom of device, so when in landscape mode, you'll have the speakers on both side of the screen. Speaker grills take up from side to side, blending with the rest of the screen. Earpiece for phone call is located invissible at the top speaker. Microphone is located invisible at the bottom speaker. Both speakers also fucntions as handsfree talking.

Third:

Because of the screen aspect ratio of 21:9, the whole device becomes taller. In landscape mode it'll be perfect for fitting a qwerty keyboard with either a dedicated row for numbers or as a numbad on the right side of the keyboard. The back of the device is decorated with a striped pattern, but this pattern is made of rubber so it also doubles as an anti-slip for the device when you want to type with both your hands like you'd do on a regular keyboard.

Fourth:

Internal hardware components can be as exotic as you wish. Bare in mind, the length of the device may also be of an advantage because you may have more room to put the chips on. In other words, putting chips and other components aside each other, can keep the overall design of the device thin. Device should not be bigger that one-and-a-half iphone 4g stacked up each other ( I'm still talking about a phone with qwerty keyboard, so it may be thicker that the original HD2) By the way, overall design should look a little like the new iPhone. Flat surfaces overall rather than bold and rounding edges. It makes the device more compelling and also more usefull when using the qwerty keyboard.

Fifth:

As for the camera. An 8.1Mp camera will do. It must have xenon flash and led light to support videocapturing in low light situations. Also, a cameralens protector is needed. Capturing in HD or Full HD. In the future, dual back camera's let you capture in 3D and watch it back on the previous mentioned future 3D screen.

Sixth:

Color should be piano black overall. The rubber paterns on the back, to prevent the device from sliding on any surface, can be stripes, circles or whatever.

I hope you get my point. As for the internals, it should be the same according to the specs of a high end HTC device.

If I could find an oem/odm manufacturer to produce for me just one sample, it would be like this. I hope to find one in Shenzhen.