I just received my DR!
I don't know if this has already been posted.
Here is an official statement from karel indicating
plans for DR power management implementation:
Quote:
During my absence there have been a few topics in regard to the battery life. In order to maintain an overview, I have locked all these topics and redirected the discussion to this new thread, where I would like to start with giving a bit more insight in the power consumption and battery life of the iRex Digital Reader 1000.
In the current software version 1.0, we have only implemented very limited power management. While the iRex Digital Reader has a hardware architecture that is capable of utilizing a number of advanced power management functionalities including a suspend-to-RAM (standby mode) and suspend-to-Flash (hibernate mode). Once these are implemented the battery life will effectively be several days.
Although the following data is not 100% correct, it should give you a good view on what to expect of the battery life, so please do not pin me down on this data.
The iRex Digital Reader has a battery of 1300 mA (milliampere) and with software version 1.0 the reader consume about 150 mA per hour, resulting in about 8 hours of battery life. With suspend-to-RAM or standby mode, which we will introduce in a next software update, the reader will go into standby mode after x seconds. While in standby mode the power consumption will scale back to less than 50 mA. Good for about 24 hours of standby time. 
In addition to the standby mode we will also be looking to introduce a sleep mode or suspend-to-Flash. This means that if the reader is not being used for x minutes it will go into sleep mode. While in sleep mode the power consumption is reduced to about 1 mA. To 'wake up' the reader from hibernate takes about 10 seconds.
In the coming days we will come back to you with more information about our software road map and what software updates you can expect to see in the future.
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IMO this indicates something is seriously wrong (again) with their hardware.
Now they are talking about 24h of standby. Not that this figure is not for continuous use. I would expect 12 hours. I don't like that.
Then in March 09 iRex will obviously launch a revision with a larger battery.
Ah don't you love iRex...