Thought I would bump this thread as I was not around at the time. I've been looking at getting the Lenovo S205 myself and thought I would answer a few questions in the hope that it will help others.
While a i3/i5/i7 will certainly be handy for FM, it is a bit overkill aswell unless you want loads of playable leagues and things maxed out. Also, people pay too much attention to GHZ. For instance, the minimum requirements for FM on windows 7 is 2.0GHZ, but people need to understand that newer processor architectures wipe the floor with older ones. So, for example, a 1.6GHZ i7 will seriously absolutely destroy a 3.0GHZ Pentium 4. And I am talking seriously destroy it in performance 20 fold (or more). Similarily will destroy a Centrino as well as severely outperform a Core 2 Duo 3GHZ. This is the same with a 2.0GHZ i5 absolutely destroying a pentium 4 (at any GHZ) and 3.0ghz Core 2 Duo, etc. The point is that people should look at the processor architecture rather than simply just look at GHZ and this is not even taking into account the amount of cores never processors have in comparison to the older ones. Similarly with phones, a 2nd GEN HTC Desire 800GHZ Snapdragon destroys the original HTC Desire 1GHZ 1st gen snapdragon.
As far as the Lenovo S205 with its 1.6GHZ dual core AMD processor is concerned, it far far exceeds the 2.0ghz pentium 4 minimum requirements for the game. Partly due to the dual core, and also partly due to the Pentium 4's old sucky architecture. The AMD E350 of the Lenovo actually performs very similar to a 1.6ghz Intel T2050 Core Duo, and I know for a fact that this runs FM perfectly fine unless you go mental with the amount of playable leagues (3-5 would be acceptable)
The intergrated graphics of the Lenovo is also perfectly fine for the 3D match engine. It actually performs slightly better than an ION 2 GPU which would handle the 3D Engine fine. The amount of RAM is also fine (anything between 2-4GB should be good enough, and anything over 4GB will be pointless)
Hope this clears up any confusion regarding GHZ and minimum specs, and while you can get a core i3/i5/i7 for similar money, if you are looking for portability then the Lenovo is miles ahead of other "standard intel Atom-based" netbooks for both processor speed and graphics.