No. Apparantly you are not allowed to organise anything like that through Expat Forum, which is a bit frustrating. Have got chatting to a few people by visiting the local park though - Safa 2 Park is a good one, although gets a bit busy and boistorous for little ones in the afternoons.
Did you ever put a Toddler group together in Umm Sequim? I recently arrived in Dubai with my two and a half year old and 4 month old and would love to get together with other moms.