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I saw that in WEBMASTERTOOLS has an option to change address. There is a manual for change of address. In the case also for 301 redirection: https://support.google.com/webmasters/bin/answer.py?hl=pt-BR&answer=93633 One of the guidelines is: You're joining two sites and want to make sure that the links to outdated URLs are redirected to the correct pages. So I think that is okay to do multiple 301, since the very google guides. : )

Thank you Steve Know I'm a contributor. hehehe

What I find strange is the keyword disappear for a day or two and then come back, often. Normal would not be lose her position and then win or vice versa?

Lets say, some sites that are normally ranked high on Google could be displayed completly wrong on iPad or iPhone devices, so this different results based on wich platform the user is using would make a perfect sense. Anyway would like to read more on the subject if anyone have any info about it.