[Xesam] Practical applicability issues

[Evgeny Egorochkin]

Hi all.

I'd like to raise again a long-standing issue of structure support.

Some of missing features that require structure support are actually being 
_requested by potential users_(who are encouraged to chime in ;-) :

* Geo tagging and geo information for addresses;

* Status and presence information for contacts;

* Adequate support of iCalendar spec, which is currently more or less 
nonexistent.

Needless to say support means not only storage and retrieval, but 
filters/query conditions.

This can't be resolved merely by introduction of some string format for a 
field that represents structured data, since eg useful features like geo 
proximity search won't work..

I consider this to be a blocker issue that significantly limits applicability 
of xesam and interoperability with platforms that don't have structure 
support limitations.

-- Evgeny