some clarifications for a noob please:
the IR sender (it can only send the signal right? not receive) of the N900 has the only purpose to control TVs? (can't come on other widespread/common IR receiver objects)
and in a difficult way? (create the right layout (if possible), UI needs work, IR port on a side, no portrait..)

beginning to understand why I lived all these years not caring for a IR port on any device...

(though, worth adding that Irreco is a nice app; everybody who worked on that has all my respect for adding functionalities to this and other devices! )