Apple iPhone
Not really e-learning related - unless students are listening to podcasts of lectures, sending and receiving texts to and from academics, recording videos of lectures or using the generous and sleek screen to share information face-to-face.....
The last point is one of my favourite features of Apple's new iPhone, the buttonless, touchscreen interface. The picture quality is sharp with brilliant colours and boasts seamless animation between menus (480x320 pixel resolution, 160 dots per inch).
The Safari web browser renders web pages as they were intended to be viewed, rather than as stripped down WAP versions, and quickly too when using Wi-fi.
Lack of Bluetooth and 3G is an issue for sharing/connectivity but as a phone/media player hybrid this is a pretty important development.