Need advice for short EU trip

[talon4x4]

My wife will be travelling to Germany for 6 days and then driving to Belgium and staying for 2 days.

After reading through all 12pgs of the Best practice international GSM setup thread and some other research I have come to the conclusion that onesimcard might be her best option. I need to keep things as simple as possible for her. She can send sms and update Facebook like a champ but when it comes to this stuff, not so much.

Pros:
- Only need one card for both countries
- Free USA number (the children and I can call her for free)
- Free incoming calls and SMS
- sms outgoing $.49/msg (if I activate discount plan for $.99 per msg drops to $.15)
- Week long data package (won't need anything more because most of her time will be spent at work or hotel, both of which have wifi)
- Have sim card in hand before leaving
- outgoing voice $.49/min, incoming free (if I activate discount plan for $3.99 per minute drops to $.29)

My other thought was the Keepgo (formerly iphonetrip.com)

Pros:
- Only one card for both countries
- Free USA number
- Free sim
- Have sim card in hand before leaving
- Only $8 shipping to my US address
- incoming/outgoing voice only $.11-.12/min
- sms $.20/msg outgoing, incoming free