Difference between PDD-nos and aspergers syndrome?

I'm currently being tested for PDD-nos, at first they thought I had aspergers but now they think I have PDD-nos. But what exactly is the difference between these two? Because they seem pretty much the same to me.Difference between PDD-nos and aspergers syndrome?
Symptoms of Asperger’s include: impaired ability to utilize social cues such as body language, irony, or other “subtext” of communication; restricted eye contact and socialization; limited range of encyclopedic interests; perseverative, odd behaviors; monotone, droning voice; “concrete” thinking; over-sensitivity to certain stimuli; and unusual movements.



Official DSM-IV criteria are similar to that for Autistic Disorder except do not include the “communication” problem areas: in other words, autistic people who talk well. [Many experts would argue that although verbal speech is preserved in Asperger’s, other communication problems certainly exist.]



PDD-NOS:

? This category includes atypical autism --- presentations that do not meet the criteria for Autistic Disorder because of late age of onset or sub threshold symptoms.





Hope this helps.

Sorry there is so much, it really is difficult to tell the difference.