As for me - sry but i cant make any video - ive got only E51 beside my SGS.
Example in GTA2:
Put a finger on X which makes me run forward and hold it.
Put a finger on any d-pad part by TAP (for <1s) and it doesnt do anything. If I hold it for couple seconds its starts to detect it, but after i release my finger off the d-pad, it stills rotate for couple more secs (sometimes longer).
In portrait/landscape. Any settings.
Example in CMR2:
Same sympthoms. If i hold X (riding forward) and try to rotate wheele by D-PAD it got like 2-3sec lag and after that changing too much.
Both portrait and landscape. Also on any settings.
As for me - its totally unplayable yet.
Phone - Galaxy S, 2.2.1 JPY and on it i put Darky's Rom 9.0 but it propably doesnt matter, coz other ppls on pure 2.2.1 claimed the same thing.
Hoping you could fix that soon, i belive in you
If you would need some debuging, i gladly help you (possibly u wont gona make it happen on your HD2, coz i saw only ppls with SGS yet to say things like that about Multitouch), or someone else, just fix it