That is true. None of the Intel cards can do hostapd.I read somewhere that the driver of the Centrino Wireless-N 2230 does not support hostapd.
wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 4c:5e:0c:11:65:38
groups: wlan
ssid apu2ap channel 149 (5745 MHz 11a ht/40+) bssid 4c:5e:0c:11:65:38
regdomain FCC country US ecm authmode WPA2/802.11i privacy MIXED
deftxkey 2 TKIP 2:128-bit TKIP 3:128-bit txpower 23 mcastrate 6
mgmtrate 6 scanvalid 60 ampdulimit 64k ampdudensity 8 shortgi wme
burst dtimperiod 1 -dfs
media: IEEE 802.11 Wireless Ethernet autoselect mode 11na <hostap>
status: running
CPU: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
Mem: 3512K Active, 10M Inact, 117M Wired, 17M Buf, 1720M Free
Swap:
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
1757 root 1 20 0 13M 2596K CPU3 3 0:00 0.08% top
1751 root 1 20 0 20M 6480K select 2 0:00 0.01% sshd
875 root 1 20 0 17M 4820K select 2 0:45 0.00% hostapd
691 root 1 20 0 11M 1824K select 3 0:16 0.00% syslogd
619 root 1 20 0 10M 1036K select 3 0:03 0.00% devd
419 _dhcp 1 20 0 11M 2024K select 1 0:00 0.00% dhclient
365 root 1 49 0 11M 1988K select 3 0:00 0.00% dhclient
362 root 1 20 0 11M 1776K select 1 0:00 0.00% dhclient
1754 root 1 24 0 13M 2888K pause 3 0:00 0.00% csh
847 root 1 20 0 19M 5600K select 1 0:00 0.00% sshd
898 root 1 52 0 11M 1688K ttyin 2 0:00 0.00% getty