is it flag of Iran or Islamic Iran?!

In this photo US President Barack Obama waves as the flag of Islamic Republic of Iran passes in front of him during the inaugural parade in front of the White House in Washington on January 20, 2009.

And the flag raises questions among Iranian again and again; is that our flag or is it Islamic Iran's flag? Let's take a look at flag of Islamic Republic of Iran and see what's on it:

In the flag of Iran entry in wiki we can read:

In 1980 a new flag was introduced with the additional emblems expressive of the Islamic Revolution. The emblem in the center of the flag is a highly stylized composite of various elements representing different facets of Islamic life: Allah, the Book, the Sword, the five principles of Islam, balance, unity, neutrality, and the universal government of the downtrodden. Along the edges of the green and red stripes appears a stylized version of the Kufic script used for the Qur'an. The phrase Allahu Akbar ("God is Great") is repeated 22 times. This is the date in the Iranian calendar on which Islamic Revolution triumphed over Pahlavi dynasty in 1979.

This basic design has been used since the beginning of the 20th century. The coat of arms of Iran has been placed in the center of the white band which is meant to have multiple meanings, but is essentially a geometrically-symmetric form of the word Allah as well as overlapping parts of the Islamic phrase "la ilaha illa Allah" (there is no god but God), forming a monogram.

So Iranian atheists, agnostics, skeptics, humanists, and all in together civil society who believe in separation of religion and state are totally against current flag because this flag doesn't represent us. It is a shame that some non-sense Arabic Islamic terms like "God is Great" and "there is no god but God" would be on Iranian flag. Unfortunately it shows how ayatollahs has been trying to change Iranian culture with some Arabic Islamic religious superstition since revolution in 1979 and it's more unfortunate when we find out that after revolution, liberals and leftists that supposed to be in favor of separation of church and state, not only didn’t criticize this new flag but they tagged along Islamists in Iran and that

Farnaz an Iranian blogger very nicely wrote:

The phrase Allahu Akbar ("God is Great") is repeated 22 times, 11 times along the bottom edge of the green and 11 times along the upper edge of the red, and that 11 is the sign of February 11 1979, the unfortunate month that the revolution took place.
She asks:

1. Why there should be Arabic language on flag of Iran? Is there any problem with Persian language that they didn't use it?

2. Isn't it that Iran existed long before Islam and Allah?

Iran has more than 7000 years old history but Islam is 1400 years old and so Allah.

3. Does the flag belong to every people of a nation? I am an atheist, I don't even believe in god and forget about Allah, there are some Jewish, Christian and so on, why there should some sign of religion that has nothing to do with us?

4. Why there should be ideological slogans on the flag?

Finally she asks:

Now you tell me, either I am not Iranian or this flag isn't Iranian flag?