Well, after 2 years of heavy abuse, my screen started to peel off (hot, hot summer - and I'm pretty sure I sweated all over it right before it started... + no screen protector). Everything still works fine though.

Question: Which parts do I need to replace?

http://www.ebay.com/itm/DIGITIZER-TO...#ht_1600wt_984

Is this the part I need?

Why no screen protector? Well, cause I absolutely HATE them, and the N900 doesn't really need one. In two years of heavy use (I've taken it from sea level to over 5,500 metres, from jungle to desert, and I've dropped it at least fifteen times - hell, it's even been run over by a city bus!) I only managed to get 1 scratch on the screen, and it was due to my stupidity (drunk, tried to wedge it between two rocks, and well... it didn't fit). Luckily, the scratch was under the front camera so it never really bothered me. I admire people who use screen protectors (and I realize they DO protect), but I just can't stand them.