[erlang-questions] learner's questions -- tuples, CEAN & jungerl

[Icarus Alive]

Hi,

Started learning Erlang using Joe Armstrong's book, and just at about
chapter-3.  Have few basic / elementary questions.

1. Found the following usage of tuple --
       { person, { name, joe }, { age, 42 } }
    Now when one has millions on such tuples, which are held in-memory,
isn't the memory footprint of the application at-least 3  x 8-byte
extranuous thanks to the 3 atoms (person, name, age), playing "field names"
? Is this a concern for anyone ? Is there are more efficient storage ?

2. about CEAN
     How relevant / current is this as a repository of 3rd party /
user-contributed libraries / tools / applications ?
     Few of the libraries / applications seem to point to documentation on
www.erlang.org site. Does it mean that such libraries / applications / tools
have already been rolled-into the official Erlang distribution ?

3. about Jungerl
     How relevant / current is this as a repository of 3rd party /
user-contributed libraries / tools / applications ?
     Is this rolled-into CEAN in some way ?
     Few of the libraries / applications seem to point to documentation on
www.erlang.org site. Does it mean that such libraries / applications / tools
have already been rolled-into the official Erlang distribution ?

thanks,
Icarus
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