TM1 9.1 SP4 was released last week.
It can be downloaded from the Customer Support page.

TM1 chore scheduling is frequency based, i.e. it will run and try to pull data after a predefined period of time regardless of the availability of the data at the source. Unfortunately it can be a hit or miss and it can even become a maintenance issue when Daylight Saving Time come into play.
Ideally you would need to import or get the data pushed to TM1 as soon as it is available. The following article shows one way of achieving that goal with an iSeries as the source...

Here is one way to generate TM1 reports fit for small displays, such as Blackberry or any other smartphone, without requiring to install any extras on the phone or setting up servers.

There will be a TM1 event on Tuesday 14th October 2008 at IBM Forum Centre, Heathrow
. News of the latest Cognos products and how they integrate with IBM technologies
. Future IBM Cognos TM1 product roadmap for 2009

TM1 9.4 was released last week.
It can be found on Cognos support site for registered customers.
tm1tutorials.com has a powerpoint from Ben Hill describing the features. And olapforums users have an ongoing discussion about the fitness of that new release.