PHP memory limit of 50M required

The installation documentation says that we should have at least 50M PHP memory but my hoster has limit of 30M. What is the implication of this? Would the Mobile Joomla not install properly or will it impair the site during run?

In most cases 32Mb (most used limit) is sufficient.
50Mb limit was required by some first releases of MobileJoomla to parse WURFL data for TeraWURFL. Now parsed and ready-to-use sql dump is included into MJ distributive, so it requires less memory during install.
My tests show that 16Mb is insufficient, 24Mb depends on server, and 32Mb should be sufficient.