Just thought I'd share a great Android app I've just found.
MM Tracker (barcode link below = android users can download by scanning the barcode using barcode scanner)
Free version will only display your MM maps.
I've purchased the full version and you can add your own overlays (routes etc), plot new routes while out, loads more. Can't wait to get out tomorrow and try it out
More details here - https://sites.google.com/site/mmtrackerinfo/
Note: You must have Memory Map on your PC!!!!!!!