[Secret Fire]

Simple...connection reestablished.

That is not exactly true, Nilpaurion Felagund, Galadriel states herself

I cannot see Gandlaf from afar, unless he comes within the fences of Lothlorien: a grey mist is about him, and the ways of his feet and his mind are hidden from me

This seems to dispel the idea that Galadriel and Gandalf are detached for any reason other than the fact that Gandalf shrouds his own thougts and does not allow anybody access to his mind. Galadriel's statement is a statement of fact, nto something new to her recently.

Surely if it was Maia and Maia communication(i sound like im from B.T. or something, ) then Sauron and Saruman would be able to communicate, and on top of that Sauron would be able to sense what Gandalf was doing, as he knew what he did usually caused Sauron problems(see the Mouth of Sauron's speech in front of the black gates). I think that it had nothing to do with Maiar spirits in that case(unless that's an innacuracy in Tolkien) but to do with the Rings of Power instead.

Sarumon and Sauron did not share a mental connection, but were able to communicate through Palantir, not without. We can see this when Gandalf says

Further and further abroad he gazed, until he cast his gaze upon Barad-dur. Then he was caught!

Gandalf goes on to say how he wondered how long Sarumon was forced to go to the Palantir for inspection and to be given orders, daunted when persuasion would not work, and how the Palantir would be turned to Mordor if any but a will of adamant looked into it. Through thos, and to note that Sarumon did not want to serve Sauron, but to be his rival, loeads me to believe that they did not communicate through Osanwe because it took two willing minds to do this.
However, even when Sarumon believed he was going out on his own to rival Sauron, he was doing his will, to a point, destroying Sauron's enemies. The fact that Sarumon was not a willing slave led Sauron to force Pippin to shout "it;s not for you, I shall send for it!" because Sarumon would have seized thie ring for himself. This treason in Isengard led, however, to Sauron's doubt and striking faster thanhe desired (along with Aragorn's will of adamant wresting control of the Palantir) and allowing the eventual victory of all.
The point that Gandalf may have used Osanwe to call to Galadriel is also refuted, however, because of the dialogue between Gandalf and Gwaihir

"Bear me to Lothlorien"
"That indeed is the command of Lady Galadriel who sent me to look for you," he answered

If Gandalf had known that Galadriel had sent for him. The only way, I believe, that Galadriel could have known that Gandalf was alive again is through the Mirror, but is this so strange to comprehend because when Frodo looks into the mirror, Frodo's first vision is

Far away a figure came slowly down the road, faint and small at first, but growing larger as it approached. Suddenly Frodo realized that it reminded him of Gandalf. He almost called out the wizard's name, and then saw that the figure was clothed in grey, not in white, in a white that shone faintly in the dusk; and in its hand there was a white staff.

I believe that the figure that Frodo saw was, indeed, Gandalf and thatit was a vision of the future, just as Sam's visions of both the Shire and Frodo. [img]smilies/smile.gif[/img]