Although the 9800 has double the hardware specifications fo the 9700, it actually works very slow with OS 6 due to the touchscreen eating up all the resources.
That said, OS 6 will rock on the 9700 as see on leaked videos as it outperforms the 9800 even though it has half the processor speed and RAM.
But if you want my honest advice.
Wait for the 9780 next month and get that.
That phone looks like the 9700 but has double the memory and processor speed.
I wish I didn't buy my 9700 now I have to keep it for at least 1 to 2 years...oh well....it is the best phone I ever owner hands down.
Smokes any Nokia, iPhone, Sasung, Android, you name it