Yes, I noticed this too! I have noticed a slow-down in iHub for the past 3 weeks, and Raging Bull is even worse for me. In fact RB won't even load anymore...I get a "gateway timed-out" error message since last Friday.
I contacted my ISP about 2 weeks ago, and they said that according to them, everything is OK with my connection. I have noticed a general slowdown on almost all the sites I normally frequent. Currently I have something called Rogers Hi Speed Lite, which is faster than modem, but not as fast as regular Hi Speed cable.
I think that it's time for me to pay the extra $15/mon. to upgrade.
FWIW...I got my UCAD dividend shares today in my optionsXpress account. I got 12 shares/1,250,000 shares ratio.