This is a nice hack, and encourage me to poke around in /sys a bit (also some other nifty things in there :P). For that matter, it gives me an excuse to use the phrase "boost the power!" in a serious conversation. Hehe. In regards to the people wondering whether it's harmful, I looked up the FM transmitter's datasheet, and 118 was listed as "typical". Thus, while it may be lowered by Nokia for regulatory reasons, etc., I doubt that it is problematic for the N900. Obviously I don't know this as fact (not being on the N900 design team), but I wouldn't lose sleep over it. @Radu Capitanu: Woah, calm down there. First of all, this "app" is a one liner shell script, which fiddles with a value in the i2c driver for the FM chip. What this means is that it isn't messing with desktop or applications at all, but is dealing directly with a fairly low-level abstraction of the hardware. For that reason, I find it a bit hard to believe your claims. If you're seriously concerned, please post a rational discussion in the forums.