full featured alter table?

Hi,

one of the biggest disease of PostGreSQL is, that i can't change the 
definition of a column.

In order to do that, i'd have to drop any keys, drop the column and 
create a new one with all indexes etc.

Are there any plans to overcome that problem?
Even simple changes like varchar(20) to varchar(200) are not allowed.

I asked this question about 2 years ago, and there were only some guys, 
that told me that i wouldn't need to change my DB if i'd plan it well.

So my DB is planned well, but i have to change it every now and than 
because i must implement the changes that my client demands me to do, 
and have some extra work that nobody will pay me for, if there's no way 
to change a column.

This is the only missing feature, that prevent me to use this DBMS - i'd 
love to, because it's an ORDBMS and that's what i'd have needed sometimes.