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According to Bulbapedia, the only NA release of Mew in Gen III have their OT fixed (Aura or MYSTRY)
NA didn't have the Old Sea Chart event item released, so Emerald players cannot capture their own Mew. (Japan had theirs released)
I have a box of 5IV xAttack Modest Bulbasaur eggs that I've saved. I plan to give these eggs away after I check my remaining (400+) eggs for shinies. Should I save more eggs, or release the remaining xAttack hatched babies? Are they 'in demand' as far as giveaways go?