Do you trust free mobile blogging clients?

Who remembers Kablog java based mobile blogging client? After a lot of efforts and partial success, developer gave up offering his source code as an open source. But no one picked it up. So for a while there were only commercial applications available. Some of them are “free”, backed by different business models for Return on Investment. Typically driving traffic to centralized web sites that aggregate content or through advertisement. Some like WordPress for iPhone are backed by WordPress developers themselves.
There are more free like Python based one for S60 (does not support Google’s Blogger tough) and provides limited support that depends on the availability of the developer. It also has no guarantee for the life duration…
As someone said once: “I am not rich enough to have cheap staff…”