Some people have been asking what TYP program I use. I use TYPWIZ4 from Pinns
http://www.pinns.co.uk/osm/typwiz4.html
The FREE version has some limitations, but I have found it so useful, I have purchased the PERSONAL version for 15 POUNDS.
It creates TYP files or TXT files.
I use the TXT output and add it as the last option in my mkgmap command line. you set the FID and PID to match the .img file you are creating.
It can make NIGHT images as well.
It makes Polygons, Linetypes and Points.
My maps look super cool, because I can modify any AREA, LINE of POI.
If you want to make money for you maps, he sells a COMMERCIAL version of TYPWIZ4.
Greg