Non-single class fighter types and iterative attacks

[Tobias Chapman 24]

If I understand the 3.5 rules correctly, if you multi-class or take on a prestige class, you simply add the to the base attack bonus. This causes the iterative attack rule at every +5 to break down. This has always bothered me. I've always believed that once you achieve the coveted +6,+11,+16 BAB, you should gain another swing, period. And I think that it should follow into epic level capping at 4 attacks. If I can get agreement on this, do you think it could make it to Pathfinder's finished print?

[Mosaic]

From d20SRD.org-

Base Attack Bonus
A base attack bonus is an attack roll bonus derived from character class and level or creature type and Hit Dice (or combinations thereof). Base attack bonuses increase at different rates for different character classes and creature types. A second attack is gained when a base attack bonus reaches +6, a third with a base attack bonus of +11 or higher, and a fourth with a base attack bonus of +16 or higher. Base attack bonuses gained from different sources, such as when a character is a multiclass character, stack.

The way I read it, EVERYBODY gets a second attack as soon as they hit BAB +6, regardless of how they got it.