Hi, Stefano. Thanks for your good suggestion about a unified certification transcript. This, in fact, should not be too much to ask. We (a cross-group team at Microsoft) are actually working on it now. I know I've seen the idea of Microsoft Office certifications (known as MOS), Dynamics (MBS), and MCP exams and certifications showing up on one transcript --- to make life easier for those of you who have dipped your toe in numerous certification waters.
I'm not sure what the timeline is, but I'll see if I can find out what exactly will be included in the transcript and when it would be expected to roll out. And I will refrain from ever typing "dipped your toe in numerous certification waters" ever again.