What are the ramifications of "mi'Moshvoseichem"?
Rashi and Ramban (on Pasuk 15): Because, in contrast to all other Korbanos, 1 it may not be brought from the crops of Chutz la'Aretz.
With the sole exception of the Omer, as implied in 23:10 (Menachos, 83b).
Why are the Sh'tei ha'Lechem, in contrast to almost all other Menachos, brought as Chametz?
Ramban #1 and Seforno: Because it is brought to thank Hashem for a successful harvest (and Chametz is brought with a Korban Todah). 1
What exactly, is the "Lechem Tenufah"?
Rashi: It is the Shtei ha'Lechem, so called because it is separated for the sake of Hashem. 1
Before it is brought to the Beis-Hamikdash (See Sifsei Chachamim).
Why does the Pasuk conclude with the words "Bikurim la'Shem"?
Rashi: Because it is the first of all the Menachos 1 to be brought from the new crops.