On coinmarketcap.com the top four MeMiCA coins sit in the positions below as of today.

14     Namecoin        $4,057,339
56     I0coin               $289,106
57     Ixcoin               $280,336
122   Devcoin              $72,579



But if you strip out the non-mineable coins it looks like this.

8       Namecoin       $4,057,339
22     I0coin               $289,106
23     Ixcoin               $280,336
54     Devcoin              $72,579

3 of the 4 MeMiCA coins with the highest market caps are in the top 25 positions among mineable coins.  As a group they are very well positioned.  We just need more development to bring them more visibility and utility for users.