Have you lost a remote for an infrared device? As long as you have your N900 with Pierogi on it, it shouldn’t be a problem.
Pierogi is a really good (and tasty) infrared remote for your N900, and allows you to control tons of different devices that are already preconfigured into the app. While apps like Raemote and QtIrreco can do the same, Pierogi has a better design in both the UI and the way the app works.
Pieorgi has tons, tons, of keysets preconfigured for just many devices you’d need, even things like air conditioners and there’s no need to download them. All supported and tested devices can be found here, but there might be more. If you have a device not seen on the list, you can request it in this TM thread. The user interface is very nice and understandable, you don’t need to spend hours trying to figure it out. And there’s no need to launch the the LIRC (Linux Infrared Remote Control) daemon, the app speaks directly with the device.
Well, I found every single keyset for devices in my house working well and out of the box, I had much more problems trying to configure them all to work with QtIrecco. So, go on and fetch Pierogi off Extras, or even better, Extras-devel (as that version has more devices and some bugs fixed) and stop worrying about missing remotes!