It is sim locked. I tried a sim from another company and it asked me for the code. By Mexico's laws carries aren't forced to sell the devices unlocked, except for Telcel, who is the major carrier. But Motorola and some others usually sell phones unlocked via retailers.
Was your cellphone already unlocked before doing this?
Mine is in AT&T Mexico... I don't know if I could use a sim from another company in the second slot, the first does not accept others.
The only reason I will choose a D3 instead the Razr i would be money, since it cost less (in my country is like almost 270 vs 460 USD) maybe will be a good option. The dual sim model is far more interesting to me, but as a backup cellphone.
The other two cellphones have no interest for me, take...
The official price in Mexico with Telcel is $8,000 MXN (around 630 USD), but there's been a promo since the launch offering the phone for $6,000 MXN (around 475 USD). In the beginning the guys from the stores said it will only last the current month, but now it's the normal price.
http://www.modaco.com/topic/361924-facebook-home-download-including-patched-apk-version/
I removed all facebook apps, then install the modified apks and finally Facebook Home, it works in my Razr i, but I think it lags the phone a bit, and since I'm not a big user of facebook I've just tried to...
My carrier seems to hate Skype, because the calls are a no-go when on 3G, even I tried in other major cities, but as soon as I connect to any decent wifi I have no problems, the quality of the call and voices are nice.
Maybe he's telling about this app Carrier Name, but it has a review that says:
"It doesn't work, don't buy it, don't spend your money, they're thieves"
The reviews is not written very well, so I have translated here.