Definitely like...#1 and #2 more than #3 and #4...
#1...try making the sun the google colors?
also...maybe an all caps font...using small caps...I like the look of the inverted "N"...
#2...try making the outline of the cloud into the google spectrum? same thing on the font...is there a way to attach the plug to the bottom of the inverted "i"? maybe that bottom of the "i" gets the google color spectrum? Could also change the "cloud" of plugging into the cloud into the google color spectrum...want some correlation there...going to be a pretty big part but not 100% inclusive...
in fact...please disregard #3, #4...
I would be open to any other completely different concepts you might have...just for variety/discussion.
Thanks!