1) Remote Buddy was the first to introduce a virtual mouse - including 
right clicks and left mouse drags - way back in mid 2006.

Right now Remote Buddy's virtual mouse is optimized to assist in 
presentations. Which usually need neither drag and drop nor right 
clicks. Instead, the six buttons are mapped by default to enable and 
disable the Mousespot feature and make jumping back to presentation 
control as easy as possible. Exactly what you'd want when using 
PowerPoint, Keynote, Acrobat, Preview ..

You can easily change this by selecting the respective actions for the 
Play/Pause and Menu buttons with two simple clicks at Prefs > Mapping

3) iPhone: please read the blog entry and my follow-up comment on that 
blog entry.

Best regards, 
Felix Schwarz