Hello...
I graduated at the end of April from an Italian university, with an MSc. degree in Computer Science. My main areas of interest/expertise are Linux system administration, Java/Tcl/C/C# development (if we can call "expertise" some university project, albeith relatively complex, and a 6 months internship in Switzerland, last year, on the subject of Computer Security).
The company I worked for last year in Switzerland, as part of an intership, can't currently hire me, because it hasn't open positions related to my role...
I've been sending tens of resumes abroad, mostly in the UK and Ireland, but so far I got nothing: I only managed to get two on-site interviews, one for a big IT company in Dublin, and another for a small one in Cambridge, but didn't land the job in either cases (the second one told me they were impressed with my skills, but in their opinion I lack communication and team working skills...).
Next week I have a test in Southampton for the NATS (National Air Transport Service), to become an Air Traffic Control...but I don't have much hope either, because the recruitment process is (righfully) very strict...only less than 6% of initial applicants become ATCs...but I want to pursue anyway, because it's a job I'd like to do...
Speaking instead of more concrete opportunities, I was thinking of shifting my focus on Switzerland, since I already lived and worked here for a few months last year.
Please note that I know German only to a basic level (I'd say A1)...I'm learning from day to day, but I think it will still take some months before I can say to be at an A2 level....
So, I tried to use jobs.ch, or other employment websites, and I also directly applied to some open positions at ABB and UBS websites, but so far nothing...
Should I move here, maybe trying for a few weeks, or there are no real advantages in doing this, since I'm also an EU citizen?
For the UK, I purchased a Skype CallOut number, so that recruiters don't trash my resume as soon as they see my Italian phone number...I might thinking of doing the same for Switzerland (it costs around 17€ for 3 months)....I guess that from the point of view of recruiters there is no difference if a Swiss landline number is "real", or is just forwarded to an Italian/whatever one....
Thanks a lot for any advice

Both the UK and Ireland are deep in recession at present. Ireland in particular is in economic meltdown with the present situation likely to only turn in 2011 and unemployment set to go over 10% (if it is not already).
With little or no German and as a graduate, you'll find great difficulty getting anything here. Consider looking more in Ticino.
No, your better bet, especially coming from Italy (where btw?) is simply to try to organize your interviews on the same or consecutive days and coming up just for those - Milan is only about 5 hours to Zurich by train, after all.

The recruitment process can be slow and so you could quickly find yourself only getting interviews as your time here has run out.
There are no restrictions on getting a virtual UK number via Skype, however there are with a Swiss number - you have to be a Swiss resident. Of course you could lie, but then you would be breaking Skype's T&C's and, possibly, Swiss law.

What I did before moving here was buy a prepaid SIM; cost me 20 SFr and gave me a Swiss number. Nonetheless, even with a Swiss number, you will still not have a Swiss address, defeating the purpose of your plan.