i have a lenovo ideapad S10e.
great build quality, second only to the HP 2140.
screen is an annoying 1024x576 which is problematic for running old games, as most need 600 vertical resolution.
but gaming on any netbook is marginal and the screen is fine for video and t'internet.
if you want more resolution then the HP 2140 and the Dell Mini 10 can be ordered with as 1366x768 10" screen.
the Dell mini 10 has a integrated chipset that is even worse than the typical GMA950 found on other netbooks, but does have the option of a GPS module which might be nice.
if battery life is what you are after then the samsung and recent 10" asus netbooks are very good.
if you can hold off then i would highly recommend waiting for the 11.6" 'netbooks' to arrive as they should use much better hardware platforms such as: nVidia Ion, AMD Athlon Neo + 780G, or Intel CULV.
these have the advantage of 1366x768 screens combined with hardware that actually can play most older games, even if at low specs.
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