Yeah, the current one is very outdated, and it doesnt complement the shape of the hand. A more curved one like the SEGA one you posted or an Xbox 360 one would be better.
My prediction threads:
Wii U will sell under 40m units (made on 14th September 2012)
PS Vita will sell under 20m units (made on 30th September 2012)
Wii U will sell under 7m in 2013 - I was right