What are the top iPhone Competitors?

What are the top iPhone competitors companies this year. To be able to be in the same game as the iPhone it needs to be a touchscreen handset device. One of the first devices in the market already is the Samsung Instinct with speedy 3G data, runs about $200-250 provider is Sprint. Another top competitor is Sony Ericsson Xperia X1 with full qwerty keypad and optical joystick running from $400.