I'm looking to purchase one of those single serving coffee pod/maker. It has to brew the cup of coffee boiling hot and not just warm. Are the flavor pods a universal fit for all coffee pod/makers???? Does anyone have one of these?? What are your thoughts on these???

Keurig Gourmet Single Cup Brewer - B50



Bunn "My Cafe" Commercial Grade Pod Brewer



Any other one's you guys have that you really like???? Any recommendations/suggestions. Thanks.