After the announcement of the 
Apple iPad , many have questions about what 
MicroSIM is used on the new device.
And the main thing is whether it is possible to “cut off” the usual SIM-ku from MTS, Kyivstar, CSO! Mobile, Megaphone or SMARTS for use with iPad
Briefly, if your 
SIM is not very old , you can easily cut the SIM card for use on the iPad, because according to the specifications 
[1], the Micro SIM card has the location of the contact pads and their purpose to match the Mini SIM cards. 

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You will need a knife or scissors for cutting, and a shatgen caliper and / or 
pattern for marking. Need to cut neatly.
The prepared template 
is available for download in PDF format, 1: 1 scale.
For users from Ukraine: after turning on the iPad into the mobile network of any of the operators, do not forget to 
register the IMEI device in the Frequency Supervision Base (UDCR).
Just in case, let me remind you, I am not responsible for damaged SIM-cards, phones or iPad, as well as hands / legs cut in the process, and other parts of the body.
[1] ETSI TS 102 221 V9.0.0, Mini-UICC UPD: transferred to DIY