Are you sure? the link you provided says:
"Does the rule apply to day trading options?
Yes. The day trading margin rule applies to day trading in any security, including options."
Besides IB's web site doesn't show them as available for trading:
http://www.interactivebrokers.com/cgi-pub/exchange_display_web.pl?einfo=ukIPE&file=IPE.html
I can see only FUTURES, no OPTIONS. :confused:
As far as I understand, Interactive Brokers has Fx trading and quotes.
Since they are just acting as broker, not a counterpart, their quotes reflect some leading institution's quotes available via the TWS.
Their quotes are compatible with several charting software.
Speaking of commissions, supposing one pays IB bundled, TS is usually slightly more expensive for US futures, with a notable exception of NYMEX e-miNYs.
EUREX is a lot more expensive with TS, making it really too expensive for active traders.