Here is a video comparing the the Onda VX787, the Ainol V3000 and Ramos T8 portable media players. All of them have a 4.3-inch touchscreen display.
Watch the clip after the break:

This is the Aniol S100 portable media player that comes with touch-sensitive buttons. The player has a 3-inch LCD screen with 400×240 resolution, and 8GB of capacity. Available in Red, Blue, Purple, Black and Silver, the PMP is priced at $599 Chinese Yuan.

[PMPToday]

Ainol V2000 is a iPhone-like portable media player. The V2000 doesn’t come with phone functionality but it does play movies. It has a 3-inch LCD display for you to enjoy AVI, MPEG and Real Video formats of movies.

The Ainol V2000  plays also MP3, WMA, APE as well as FLAC music formats. It can even play games with the preloaded emulator. V2000 is able to play NES, SNES, Sega Genesis as well as NeoGeo games.

The phone supports SD memory cards up to 4GB.