Muse in South America - Roundup

Since it's been a slow news week/month, and the South American Tour rumours are spreading like jam, here is a compilation of everything we know, the 'confirmed' dates and the rumours.

There are two 'confirmed' dates

20th July 2008: Unknown venue, Bogotá, Colombia (source 1, with info about ticket prices; source 2, confirmed by Evenpro) Tickets will be available in here and here.

26th July 2008: Teatro Caupolicán, Santiago, Chile (source 1, source 2, confirmed by Fenix Entertainment Group Chile. Tickets will go on in early June)

For Mexico: Warner Music Mexico has confirmed to the fanclub, 'Origin Of Black Holes' (http://originmexico.informe.com) that Muse will perform in Mexico but they didn't give any further details (specific date, venue or ticket sales). Apparently there'll be more information coming this week.

Rumours:
Microcuts.net lists a show in Rio de Janeiro, Brazil, on the 31st July 2008, here. The source is probably this one.
More information can be found at this link, that lists Sao Paulo, Rio de Janeiro and Curitiba as the three cities where Muse would play at.