Bit of IT planning I have heard "through the web":
Many companies had their executives a clean, loaded laptop to take with them to Asia. When they get back, that laptop is completely wiped (erased to bare metal and reloaded) before it is allowed to attach to the corporate networks. The expectation is that many Wi-Fi hubs will push spyware onto any computer that connects through them. The Wi-Fi will follow the same standard, so yes, she can use them, but be aware that everything will try to take over her system. It might be better for her to verbally tell you what banking she needs done and you do it rather than try to do it from there. (Also, NSA and foreign spy services will be watching all emails, voice calls, Skype, etc.)
Skype is dependent on the government and which day as to whether or not it works.