APZonerunner
Member
If there was one potential plot point that was faulty it had to do with the sonics, they were doing a calculation for hundreds of years. Yet Eleven actually fried the tenth's sonic early in his adventures and then got his new one. So it wasn't just a new casing as Hurt says unless the sonics always link up with the Tardis to keep information up to date.
The actual software it runs is the same, though, that's the point, I guess. They do use the word software. The Tenth Doctor breaks/destroys his Sonic a couple of times, too, after all. The Eleventh loses at least one (to the shark in A Christmas Carol), too.